Editing Firearm (section)

==Types of firearms==
Having been around for well over 1500 years there have been many types of firearms over the course of time. Humans are, if anything, very inventive when it comes to coming up with new and interesting ways to kill each other. A rough list are:

===Ye Olde Gonnes===
*Firelance: Oldest of the Oldschool guns, simple bamboo tubes stuffed with gunpowder and pebbles used in the Ten Kingdoms period and the Song Dynasty. One inaccurate spray of flaming fuck-off in close quarters, often tied to a spear.

*Handgonne: A catch-all term for a primitive gun without a lock that need their powder charges. Majority of these guns were handcannons, as in literal man-portable artillery pieces that had a 50/50 chance of either working or malfunctioning, the worst of which would be the gun exploding in the shooter's face.

*Arquebus - A basic matchlock Firearm. A note of clarification: 'Arquebus' and 'musket' are both used to describe firearms from this time and they are often used interchangeably. But if you want to be ''really'' technical in this period an Arquebus is a regular two handed matchlock firearm while a musket is a larger heavier gun firing a larger projectile, sometimes up to an inch in diameter. Latter (about 1700 onward) musket would refer to any muzzleloading long barreled handheld firearm used for mainly shooting solid shots. This is not too much of a big deal and is nothing to get mad about, but it is worth noting.

*Musket - Today, the musket is a catch-all term for all early smoothbore, shoulder-fired, muzzle-loaded firearms. Technically this isn't the case, the musket was an improved Arquebus, one of the earliest muzzle-loaded guns. However because of romanticism and literature; people who aren't acquainted with firearms will commonly refer to any muzzle-loaded long weapon as a musket (about the same reason why most people today refer to any automatic weapon as a machine gun). Muskets were inaccurate as people have yet to put serious research into firearm ballistics, lacked sights, generated a lot of smoke due to primitive gunpowder mixtures, and were temperamental to environmental conditions (rain will pretty much render a musket into an wet stick of wood), but still enjoyed a lot of popularity due to their lethality and ease of use compared to other man-portable ranged weapons at the time - and even their inaccuracy (they were after all, shooting at a bunch of guys standing shoulder-to-shoulder...) may have been more attributable to the generally-poor training given to the vast majority of soldiers of the time. Muskets were quickly phased out once rifles sufficiently improved (they co-existed for multiple decades, with rifles being reserved for light infantry who used their rifles to place accurate shots...at a fraction of the fire-rate of muskets who stayed in the hands of the line infantry, because the light infantry now had to shove the bullet in by the spiraled rifling) to do what a musket could do, but better. Muskets were categorized by what firing mechanism was used in the lock:
:*The earliest versions used matchlocks, which fired by poking a slow-burning fuse into the firing chamber. These were fairly unreliable and somewhat hazardous since you had a smouldering fuse close to the flashpan when you were reloading.
:*The next developed version was the wheel-lock, which used a quick rotation of a wheel against a pyrite to create sparks, making it the first self-igniting firearm. Due to it's price, it didn't replace the matchlock in most cases, only being used by cavalry, elite soldiers and gunpowder guards.
:* Flintlocks replaced matchlocks (itself an evolution of earlier snaplock, snaphance, miquelet lock, and doglock mechanisms) which ignited by generating sparks when a piece of flint struck the iron frizzen, igniting the powder in the flashpan. The flint would periodically break and need replacing, but it was still safer than a matchlock. British Soldiers of the era commonly nicknamed their Brown Bess Flintlock musket "Flinchlock", because the brief flash of fire going off right in your face from the powder igniting inevitably made you flinch, especially if you weren't used to it.
:**Fusils are early flintlocks (in fact "fusil" derives the Latin "foisil" , meaning a piece of flint), and like any early technology they were more expensive then there later derivatives. Therefore Fusils were given to elite higher trained troops, hence the english/french words 'fusileer' and 'fusillade'. The primary use of Fusils while they distinct from standard infantry weapons (matchlocks) were guarding artillery since unlike matchlocks, flintlocks like the Fusil do not produce so many sparks, a major concern around barrels of gunpowder common around artillery trains!
:** Snaplock uses a flint to strike against a frizzen but is different from the later flintlocks in that the frizzen and pan are separate pieces of the weapon while later flintlocks combine frizzen and the pancover into one, which made the later flintlocks much cheaper. The user also has to manually open the pancover before shooting, which can be a problem in rain. Like the wheel-lock, snaplock didn't manage to replace the matchlock and in fact, in many regards wheel-lock was considered superior despite coming first.
:** Snaphance is similar to a snaplock but it has an additional mechanism which opens the pancover automatically when pulling the trigger, making it a lot less likely that the gunpowder would get wet.
:* With the invention of the percussion cap came the Caplock, or Cap & Ball. Successfully outcompeted other newborn fulminate primer models (such as the scent-box/sliding lock and the pill/tube lock), this was the final evolution before breachloading became widespread. The cap would be fitted onto a tube to the firing chamber after the musket was loaded. Caplock firearms did not generate sparks in and of themselves; rather, they used a simple hammer to strike the cap, which would in turn ignite the powder in the firing chamber. Far more contained than flintlock, until the fully self-contained cartridge superseded it entirely. After the introduction of cartridges, it was fairly simple to convert existing caplock weapons by replacing the percussion cap tube with a firing pin, and adding a loading gate. Cap & Ball still sees use, even having a few entirely new designs created using the mechanism, due to many countries not considering them or anything prior as "firearms".

*Multi-barreled gun - In the olden days, people wanted more dakka launched at enemies, but things like magazines and self-loading weapons were still an alien idea during its time. So as an alternative people took a breach/muzzle-loaded firearm, slapped one or more barrels onto it, and reworked the trigger so they can fire more shots before needing to reload. This resulted in some particularly wacky times for guns. To this day, the only multi-barrel weapon still commonly used (disregarding military rifles with underslung grenade launchers, door breaching shotguns, or rotating barrel Gatling-style guns) is the double-barreled hunting shotgun. Some notable guns were volley guns called ribauldequin, which were a line of infantry dudes without most of the dudes. The problem was that this took very long to load, because you have one or two people ramming shit rather than 20 dudes each loading. So, that was a colossal fail in a long term artillery exchange, but quite effective for countering a charge when all you need is one volley to make mincemeat out of that cavalry coming at you.

===Modern Firearms===
*Handgun - Also called "pistols", handguns are small-sized firearms that can be comfortably fired in one hand (hence the name). Handguns are mainly used for close defense and as a sidearm, making them akin to daggers. Modern pistol calibers are commonly between 8mm and 11mm, although popular magnum rounds like the .50 GI and .50AE are also exist for handguns (albeit they tend to be large, heavy, and likely to fuck up your wrist from the recoil).
:*Self-loading pistol - Semi-automatic pistols are magazine-fed handguns that use the fired cartridge’s energy to extract and eject the spent cartridge, recock the hammer, and feed a fresh cartridge into the chamber. A concept that took a comparatively long amount of time to get into place, with the first functional semi-automatic pistol being the German Borschardt C93, and the first mass-produced one being the iconic Broomhandle Mauser C96. These had several advantages over revolvers, like having a bigger magazine, being much easier to reload under field conditions, but the most important of which being that they were much easier to maintain. Starting with the Walther PP and the Colt M1911, most nations militaries quickly shifted towards pistols instead of revolvers, with some completely replacing them even before WW2. Revolvers stuck around longer in police service in many countries, but were pushed out of this role as well, making Revolvers only widespread on the civilian gun market, especially for hunters, where the safety and reliability of a Revolver is an advantage over semi-autos that cannot be ignored.
:*Machine pistol - A machine pistol is a handgun that can fire in either bursts or in full-auto. While they're commonly thrown into that category, machine pistols are not submachine guns due to their size and use. Machine-pistols are not in widespread use with traditional military forces as SMGs and PDWs do better damage and have a longer range, but they remain popular with personnel like bodyguards or hitmen, who require a highly portable and concealable but powerful sidearm.
:*Derringer - Another case of the concept being named after its inventor, "derringer" refers to tiny pistols, often used as concealed or backup sidearms, that could fit into the palm of your hand. These things have been around since the 19th century and were single-shot, though could have multiple barrels to fire off more shots before reloading, which were fired in a sequence. Due to their size and intended use (i.e: shooting someone while literally next to them); derringers typically used small rounds like .22 and below. But if you ''really'' wanted someone dead (and your wrists obliterated); some packed larger shots like [https://en.wikipedia.org/wiki/COP_.357_Derringer .357 magnum rounds].
:*Pocket Pistol - Modern versions of the derringer, those are really small handguns or revolvers that sacrifice range and ammo count in order to be as small and easily concealed as possible. Also called "subcompacts". Obviously ideal for bodyguards, spies and VIPs to use as last resorts.
:*Flare Gun - While not exactly a proper firearm per se, due to being used to fire fat and slower moving flares instead of actual bullets, flare guns made from metal (any plastic ones are a risk waiting to cripple your hand) can accept tubular inserts into the breach in order to fire small to medium sized shotgun shells and pistol rounds. Granted, accuracy is going to be mediocre (assuming the inserts themselves have no rifling) and you're going to have to load and remove each bullet case like grandpa's old break action shotgun before you can shoot again. However, it works well as a hidden holdout weapon or a dual-use survival weapon while you're hunting or in the wilderness. The original ammunition, the flares themselves, can also be useful for burning combustible matter as they've been used by soldiers in the past to sabotage equipment to keep out of enemy hands or set fires off from a distance. In some extreme cases, they've been experimentally designed to fire grenades as seen with Nazi Germany's experiments with the Kampfpistole/Sturmpistole or outright used as lethal (albeit improvised) weapons during the Korean War by shooting flares that lodge into some poor Chinese soldier’s coat to burn him to death.

*Revolver - A revolving gun is any weapon that uses a revolving cylinder to load new rounds after every shot. While its commonly now relegated to pistols (a revolver typically meant a revolver pistol these days) the style is still used for some shotguns (like the Armsel Striker) and grenade launchers (like the MM1-Hawk). Historically, revolver rifles were invented in an attempt to create repeater rifles for soldiers as seen with the Colt's New Model Revolving rifle from the 1850's. However, due to lack of of a gas seal, most were notorious for leaking gas that could harm shooters or set off all the chambered rounds in a chain fire if they were pre-brass cartridge designs. By the time reciprocating chambers were made to automatically seal gaps between the barrel and the cylinders (like with the Nagant M1895 and it’s unique cartridge), revolvers had already been superseded by magazine-loaded firearms in military arsenals. However, they did make a small comeback with brass cased ammo and installed blast shields as seen with Taurus/Rossi Circuit Judge carbine or the MTs255 shotgun. Revolvers are still in use for a few reasons: they're simple and cheap to make, can easily be used by left and right-handed shooters (since spent casings aren't automatically ejected like in the case of modern firearms) and is still pretty robust compared to today's modern weapons as fewer mechanisms means fewer points of failure. Downside is that they have very limited ammunition space (because the gun was made around the cylinder you can't expand it like how you can with detachable magazines, so you either had a gun with 5-8 rounds or a bulky gun with a 12-round cylinder) and reload time (even with speedloaders, the time it takes to empty and take apart the gun to load more bullets can be lethal, which the FBI [https://en.m.wikipedia.org/wiki/1986_FBI_Miami_shootout learned the hard way]). Thanks to the American old west era and subsequent movies about it, revolver-styled handguns have achieved a kind of rustic yet sleek appeal to them. Revolvers come in generally the same calibers as handguns, from the modest .22 Long Rifle used for practicing and target shooting to the behemoth .500 S&W Magnum which can put down a bear. "Snubnose" revolvers refer to revolvers with shortened barrels in an attempt to make them more compact.
:* Top Break/Tip up - A revolver with a hinged frame that opens to expose the cylinder. These were originally designed for cavalry, as they are very easy to load. However, the two piece frame is a weakness that limits the power of cartridge that can be used. Due to this, these types of revolvers are rarely used today, and are mostly relegated to using low-powered ammo between the .22 and .32 range.
:* Swing Arm - By far the most common type of revolver, the swing arm mounts the cylinder on a moving arm known as a crane, which allows the cylinder to be exposed for loading. The chief limitation of the swing arm design is that the crane can bend over time and due to rough handling, but several tests would indicate you'd have to be deliberately trying to break your gun over a period of time for this to happen (assuming you aren't using a cheap gun made out of low-quality metal). Modern revolver-style grenade launchers are typically swing-arms.
:* Gate Loading - Named for their loading gate, these revolvers can only expose one cylinder for reloading a a time, with the spent casing being pushed out through the gate by a long ejector rod. Gate loading revolvers are the earliest style for cartridge revolvers, dating back to conversions of percussion cap revolvers. Gate loading revolvers are now rare except for reproductions, revolvers designed to big cartridges, and revolver shotguns. The fixed cylinder is the strongest possible configuration of revolver and thus the most tolerant of high power ammunition.

*Submachine gun - A submachine gun (abbreviated to SMG) is a fully automatic weapon that fires pistol cartridges instead of the larger rifle cartridges. One of the first true fully automatic infantry weapons outside of the machine gun, hence the name. The weapon fulfills a similar role of the carbine, striking a balance between firepower, recoil, and bulk. They also make good stealth weapons, as most pistol rounds are subsonic with heavier bullets and thus much quieter when suppressed. SMGs are the weapon of choice for most specialist police and anti-terror forces around the world, since most scenarios they use them in (i.e. storming a building or something similar, for anything else you got snipers) don't require a lot of range and are much more compact than full-fledged rifles.

:*Personal Defense Weapon - A PDW is a bit of a mix of a carbine and an SMG, firing specialized cartridges with rifle-like characteristics (usually in the 4-5mm range, shorter than a rifle cartridge but longer than a pistol cartridge) at the cost of additional weight. Its original role is as its name implies; a personal defense weapon for nonfrontline infantry, like artillery spotters, scouts, vehicle crews, commandos, etc. Back in the day PDWs weren't necessarily automatic; a pistol with a longer barrel and mounted stock could be classified as a PDW (This was done with the German C96 and Luger P07), today however these would qualify as "pistol carbines". These days PDWs are commonly lumped into the same category as SMGs, as they now fulfill similar roles.

*[[Shotgun]] - Shotguns are smoothbore weapons (as in the barrel is not rifled) designed to fire either shot (multiple steel or lead pellets) or slugs (a single, heavy projectile), although modern times have included other types of ammunition. The ability to fire multiple types of ammunition without modification is one of the main advantages to using a shotgun; converting an anti-infantry weapon into a door-breaching tool, a mini-flamethrower, or a less-lethal weapon with but a switch of the munitions. The vast majority of shotguns are pump-action or breech-loading, though as of 1905 shotguns can come in semi-automatic or fully-automatic configurations, but sheer variety of shell loads makes their reliability highly ammo dependent. For more information see the [[shotgun]] page. The most common bore size for shotguns is 12 gauge (about 18.5mm). Confusingly, higher gauges are lower in size because its based on weight of spheres of lead rather than diameter; a 20 gauge is about 15.6mm, while a 10 gauge is 19.7mm (.410 bore exists outside this and is .410 inch/10.4 mm/67 bore).

*Rifle - Rifles were originally shoulder-fired weapons that had their barrels "rifled" to increase precision, by putting spiral grooves into the barrel in order to have the bullet spin before leaving the barrel; reducing it's wind resistance (otherwise known as drag) and giving it more momentum as it leaves that muzzle. In ye olden days, these were specialist weapons given to marksmen while the common soldier carried a musket. However, because all modern non-shotgun non-explosive firearms now use rifling to improve ballistics, the term is usually reserved for a shoulder-fired long weapon, designed for accurate fire.
:*Assault Rifle - Assault rifles are a term given to any rifle that can be fired on full-auto and shoot intermediate-caliber rounds, typically in the 5mm range (or a shortened 7mm round if you're from the Eastern bloc). This is usually the standard weapon of a non-specialized front-line infantryman. The STG44 is considered to be the earliest one fielded in industrial quantity, though the idea has been around since at least the first World War. Traditionally, the term "Assault Rifle" is rarely ever used by servicemen to refer to this type of weapon, and typically call them "Automatic Rifles" or "Service Rifles" instead.
:*Battle Rifle - Basically the assault rifle's big brother; battle rifles are bigger automatic rifles designed to fire high-caliber rounds, typically in the 7mm range. These were the mainstay for armies in the 1950s, but the US eventually found out that giving infantry rifles with smaller rounds is better since its lighter and can allow infantry to be more accurately engage enemies better due to lower recoil (albeit at the cost of power), so battle rifles were replaced by assault rifles for front-line use and battle rifles were relegated to specialists like marksmen or support gunners (who's job permits for a slower-firing but more powerful weapon). The M1918 BAR may count as one, though the first occurred no latter than 1942's FG42. Some armies still prefer to use full battle rifles alongside assault rifles, notably the Turkish MPT-76 in 7.62 NATO was made after soldiers expressed lack of satisfaction with 5.56 MPT-55's, though no army only has battle rifles unless it's third world with nothing else around.
:*Carbine - A carbine is a compact rifle, primarily designed to be used in close quarters. In most cases, carbines are based from a parent rifle, and are scaled down by using lighter/smaller parts and shortening the barrel (such as in the case of the American M16 vs M4) or is its own weapon (like the Korean K1A). These are typically given to units who need to engage the enemy at close range and need a rifle for the job, like commandos, assault teams, or other specialist units, or given to units who are not expected to fight on the front but need a compact but decent weapon to defend themselves if the need arises, like pilots or vehicle crews. Carbine may also refer to pistol-caliber semi-automatic weapons that are longer than a pistol, but this is typically only used in the civilian market. The concept of a carbine predates modern firearms, though they existed primarily for cavalry.
**The terminology of what and what isn't a carbine has never been consistent over the course of history. Originally, Carbines were short-barreled Muskets handed out to mounted cavalry units like Napoleons Chasseurs á Cheval, who would either fire from horseback or dismount and shoot like line infantry would do. This definition of "cut down version of the main service rifle" stuck around until World War 1, after that, it becomes a wild ride with main service rifles that were designated as carbines (Like the K98k of the Wehrmacht) or what would probably have been carbines that retained their designation as rifles (like the Lee-Enfield No. 4 and 5) and even weirder in the brief time when all nations around the world experimented with intermediary cartridges, leading to designations like the German MKb 42 (H) (a forerunner for the MP43/Stg 44) or the AK-47 (which was categorized as a carbine in Soviet armoury lists, but as a SMG in the East German Army). So basically, a Carbine is a Carbine when the manufacturer says so.
:*Micro Assault Rifle - Even smaller than carbines; these are ultracompact rifles designed when someone needs a highly portable but powerful weapon. A MAR is basically a PDW that shoots actual rifle rounds. Much like carbines; a MAR can either be based on a parent rifle and scaled down or made as its own weapon. These tend to have low effectiveness for standard calibers, since those were designed for full length barrels, but the logistics of supply are superior. 
:*Sniper Rifle - A sniper rifle is a special precision rifle, specifically designed to engage targets at extreme range with lethal efficiency. Many sniper rifles use standard 7.62mm rounds, but high-performance rifles will use more potent rounds up to 12.7mm rounds for extra range and stopping power. Preferably, sniper rifles should use match-grade ammunition to provide consistency and accuracy at high extended ranges. The vast majority are bolt-action for simplicity and power (much more reliable and because all the gasses are diverted into the barrel, rather than some being diverted to work the action; the gun can launch the bullet farther and faster), but there are also a decent number of semi-automatic ones. Sniper rifles are given to special marksmen called "snipers", who are capable of engaging the enemy from extreme distances, usually well away from the scrap.
:*Designated Marksman Rifle - A sort of compromise between battle rifles and sniper rifles, DMRs are precision weapons meant to be used by frontline infantry to accurately engage distant targets that regular infantry weapons cannot. Due to its role, it's generally more accurate than a rifleman's gun, but usually not as effective as an actual sniper's gun (DMRs are usually only effective within 1 kilometer, while SRs are typically effective beyond 1 kilometer). Generally speaking, DMRs avoid using the more high-performance rounds that snipers may use, as it may be detrimental for an infantryman's role.
:*Recoiless - Not a conventional gun in most senses; a recoilless gun (models with rifling are called "Recoiless rifles" though people often miss this distinction) is as the title suggest, a rifled weapon without (or at least reduced) recoil. It does this by basically being a cannon with the back taken off. When loaded the cartridge sits in an open back tube, there is no breach. When fired, the explosion propels the shell out the tube, but an equal amount of gas comes out the other side canceling out the recoil. This means that total muzzle velocity is lower than a cannon with a breech on it, but they make up for it by shooting bigger shells, and with HEAT shells (thanks to the nature of the Munroe effect) the wider the diameter of the shell the more effective it is, meaning even a large slow moving projectile can do a great amount of damage to tanks. Larger, towed versions are often mistaken for field artillery or antitank cannons. Meanwhile shoulder fired versions are often mistaken for their rocket launcher cousins like the bazooka or the RPG; while both rocket launchers and infantry portable recoilless rifles lob antitank munitions at tanks, the recoilless rifle round are not self-propelled by rocket motors and rely on just momentum from the launcher to fly.
:*Anti-Tank/Materiel Rifle - Essentially modern elephant guns; these rifles are geared towards destroying tanks and hard objects, although they are very much still capable of demolishing infantry (albeit overkill since rifles of this type tend to outright cause body parts to explode by the sheer amount of force they carry.). Anti-tank rifles were the norm for years (From the 1910s to the late 1970s) as they were a cheap yet effective way of getting rid of tanks, but advancements in vehicle armor has largely rendered AT rifles obsolete (at least for anti-tank roles, these things can still royally murder lightly-armored vehicles and urban housing, thus why they can be seen in use today). Anti-materiel rifles however, are a bit of an offshoot of AT rifles, and are still in use today. They are often used to take out lighter vehicles, to detonate ordnance at a safe distance or fuck up anything valuable to the other side like radars, communication devices, heavy weapons, etc... They have been successfully used against light boats and even to down the occasional helicopter. Likewise, they have been used by both professional and paramilitary forces due in thanks to their ability to annihilate cover (and hopefully what's behind it) where most conventional small arms won't. Usually chambered in heavy machine gun caliber around 12mm to 15mm barring some attempts at making man-portable 20mm caliber guns interwar to early WW2 though those didn't pan out.
:*Stopping Rifle- A rifle that fires a ludicrously heavy bullet, usually as a single shot but rarely as a bolt action. As the name implies, these were developed to bring down stop big game. like elephants, that were charging at you but eventually became the precursors to anti-material rifles. Unlike the later, range or penetration aren't big concerns so much as delivering a massive amount of energy to a soft-skinned target. While hunting elephants may be illegal today, a large caliber weapon is still useful for defense against large predators like bears or lions, who would shrug off a smaller 5.56mm or 7.62mm to the body. Firing such a heavy weapon while standing or even sitting isn't a pleasant experience; without the right stance, it'll go flying once you pull the trigger.
:*Everything else - Except sniper rifles and most Designated Marksman Rifles, all of the above rifles are generally "military-grade" and thus are generally not available to the public (unless you are in '''<span style="color:#ff0000">The Great</span> <span style="color:#e5e5e5">United States</span> <span style="color:#0000ff">Of America</span>'''*, *NFA restrictions apply). Any other type of rifle will typically be called a "sporting rifle" or "hunting rifle", etc and are either bolt-action or semi-automatic. Technically speaking, most "military-grade" firearms can be modified to become semi-automatic to allow for use within the public.

*Machine Gun - Colloquially a machine gun is a large automatic weapon (though technically anything fully-automatic, ranging from a machine pistol all the way up to auto-cannons), typically fed from a magazine or a belt (or both, as is the case with the M249) and meant to either be man-portable or fired from an emplacement or mount like a tripod or turret. The main difference between MGs and the rest of the automatic weapon family is that an MG is a gun meant to fire with longer continuous bursts as a support weapon; meaning that the machine gunner applies continuous suppression fire at the enemy to keep them down (and occasionally kill those stupid enough to not get the message), while the rest of the squad maneuver. Machine guns are generally heavier, not only because of the volume of ammo they carry; but their parts (such as the barrel) are made of heavier materials so that the gun can withstand the punishing amounts of bullets it puts downrange (firing hundreds of rounds without pause can cause guns to overheat and malfunction, even catch fire or explode in the worst of scenarios, unless they're built for such a task.) Even then, barrel changes occur frequently to change warped and damaged barrels.
:*Light Machine Gun - an LMG is a man-portable MG that fires the same intermediate rounds as assault rifles. They are intended to be almost as portable as a rifle (as in, they can be shouldered, but get better performance with a bipod) and allow machine gunners to provide suppressing fire at the squad level. Some LMGs are magazine-fed rifles with heavier barrels and modified bolts to allow them to withstand the heat buildup of sustained fire (such as the RPK), or else are scaled-down MMGs (such as the M249 SAW).
:*Medium Machine Gun - an MMG is a man-portable MG that fires the same full-power rounds as battle rifles. These tend to push the limit of what's practical for a man-portable weapon, and when deployed are usually fired from a stationary position either on a bipod or tripod due to the recoil they generate. These weapons usually overlap with General Purpose Machine Guns and tend to be deployed at the company level or as a vehicle weapon.
:*Heavy Machine Gun (classic) - The definition of an HMG has changed a bit over the last 100 years so the catagory has been split up into two categories. The classical heavy machine gun is exclusively meant to be fired from emplacements and mounts like a tripod due to their large size and weight and was designed to be fired from a fixed position: constantly, just spitting out bullets for days. Often done with the aid of a water jacket which further increased the weight of the weapon. These are the guns that created the quagmire of the great war. Their heavy weight made them impossible for an infantryman to fire on the move (regardless of what you hear; even Hollywood couldn't make these monsters man-portable in their movies, and those fire low-powered blank rounds and is being held by the like of [[Sly Marbo|Sylvester Stallone]]). But that weight also greatly limited their maneuverability and forced them to stay in a static defensive position. Usage outside of vehicle mounts died off when artillery became more precise and could easily wipe out immobile emplacements. Unlike modern heavy machine guns, classical ones used a standard sized rifle cartridge, the vickers for example used the .303 bullet same as the standard rifle of the day, what made them 'heavy' was the focus on sustained shooting to throw back waves of attacking infantry. Examples include the Maxim gun, Hotchkiss Mle 1914 and the Vickers.
:*Heavy Machine Gun (Modern): a modern heavy machine gun is not designed to fire constantly, but to fire a big bullet. Only slightly too small to qualify for the definition of 'cannon' are weapons like the M2 browning .50 caliber, or 12.7 mm machine gun. Modern HMG's are powerful enough to penetrate light armor and damage fragile equipment on heavy armor (like scopes), making them formidable weapons. Examples of modern HMG's are the Russian DHSK and the American M2 Browning. 
:*General Purpose Machine Gun - Essentially a machine gun that can perform multiple roles of the previous stated. Examples of this are the German MG34 (arguably the first of this concept) and MG42/MG3, or (from an American prospective) the American M60 and M240, which can reliably serve both infantry-level support weapon and mounted gun roles by fitting them with the appropriate parts. The first ones used the general rifle cartridge, while modern examples are in 7.62x51 NATO or its equivalents.
::*Squad Automatic Weapon - An attempt to make a GPMG that use the intermediate cartridges everyone else in the squad used. Despite the weaknesses of intermediate cartridges (limited range, low barrier penetration/destruction) being more noticeable in a machinegun role, they is still commonly used by virtue of their reduced logistical requirements and lighter weight compared to other man-portable LMG variants. The RPD, RPK and M249/SAW/MINIMI family are the main entries here, though it seems every modern assault rifle has tried to make a SAW variant with varying degrees of success.
:::*Infantry Automatic Rifle - A more recent concept that seeks to combine the continuous firing properties of a machine gun with an assault rifle's accuracy and ease of use. So far only attempted seriously by the US Marine Corp with the M27; while the higher-ups are pleased with it so far, there is considerable debate about whether its lower rate of fire compared to the M249 will make it less effective at providing suppressing fire.
:*Rotary Machine Gun - Originally known as the "Gatling gun", man's first known attempt to have enough [[dakka]]; a rotary machine gun is an automatic weapon that uses revolving barrels that interchange every time the gun fires off a round. The kicker to this is that it allows the gun to shoot with little threat of the barrels wearing out as they interchange between shots; giving them a small window to cool off before firing again. The end result is a gun capable of firing over 3,000 rounds per minute without fail, or in a smaller scope; 50 rounds per second. Modern rotary guns are electrically powered to allow them to reach such insane speeds, and are given ammo drums that contain thousands of rounds to be able to sustain that amount of bullets being fired; so they're confined to static emplacements and vehicles (unlike what the media constantly portrays; these things are not even close to being man-portable without assistance from powered armor.) These types of guns are used almost exclusively on aircraft. anti-aircraft emplacements, or even anti missile turrets as they're the only non-missile weapon that can reliably hit fast-moving aircraft. But a rotary gun that fires 30mm rounds is powerful enough to tear tanks in two, as well (metaphorically, they only have to penetrate top armor and rate of fire helps). Unlike what the movies would tell you a rotary machine gun does not need a long spinup time to get to full speed: when the trigger is pulled the gun starts to spin and fire immediately.
:*Chain gun - A chain gun is a machine gun that is fed using an electric motor. Instead of relying on the gasses from the bullet to work the action to cycle a new round; a machine automatically ejects and loads a new round in after firing a shot. Chain guns have the benefit of never jamming due to feeding failures, as even if the round is not discharged; the machine pops it out and loads a new one regardless. However, it is also not man-portable as it requires an electric motor to function, so it is only found on fixed emplacements or vehicles. Can easily fuck up any poor shmucks day by perforating the boat or car they are in. People sometimes use the words "chain gun" and "rotary machine gun" interchangeably (thanks, Doom), but chain guns are typically single-barreled, as they don't need the high rate of fire that rotary guns do outside of anti-air guns. If you see an actual rotary barrel chain gun, it's probably a CIWS like the Phalanx or the Kashtan, and while primarily designed for air defense (mostly helicopters and ground attackers who get too cocky) and to shoot down incoming shells and missiles, they can most assuredly put holes in boats and vehicles.

===Actions===
"Action" refers to how ammunition is loaded into the weapon.

*Single-shot: The first and oldest of all; a single-shot weapon is when users manually load rounds into the chamber. This can be anything from loading a new round, cocking the weapon every shot, or pumping the action.
**Muzzle-loaded: The earliest form of how weapons were loaded. This meant you had to load a new round directly into the muzzle, which is where the bullets come out. In its earliest form; muzzle-loaded guns were complicated to arm; you had to fuck around with a wad, powder, and slug. In the heat of battle, you had to ram these down the barrel of your gun in the correct order, light the wick, then aim before the gun goes off. And you had to do all this while standing in the open within firing range of your enemy. Still in use because many jurisdictions have a muzzle loading only season and such obsolete arms are subject to fewer legal restrictions in general.
**Breach-loaded; An upgrade over muzzle-loading and developed shortly after cartridges were invented; breach loaders are where the back of the barrel can be opened so that you can load a new round into it. Many muzzle loaders were converted to breech loaders in workshops near the end of the Industrial Revolution. It is still a popular setup for multi-barreled shotguns. Certain revolvers are breach-loaded as well, but given the size and design of the revolver, this gives them a notable weak point at the top of the weapon where the parts connect together. Most come in flavors such as break action (popular with simple shotguns and flare pistols), trapdoor mechanisms, rolling blocks, falling blocks (attached to levers), or bolt action.
**Bolt-action: This type of action is where you pull the charging handle of a weapon, every time you shoot so that a new round can be chambered. They come in two varieties: faster but weaker locking straight-pull bolts and slower but stronger rotating bolt actions. Originally starting off as single shot rifles, they eventually added magazines to reduce the amount of loading required once smokeless powder was used. These were pretty popular in WW1 and continues to be used today for precision rifles and discount anti-material rifles due to their simplicity and strength.
***Needle Rifle: An early precursor to the bolt action from the 1840's with the Dreyse and Chassepot rifles. Unlike its grandchild in WWI, these used self-contained paper cartridges where the primer is on the tail end of the projectile and the gunpowder is sandwiched between the primer and the rest of the paper cartridge. To ignite the gunpowder, the bolt's firing pin actually needs to puncture the cartridge from the back with a needle and hit the primer. While faster to fire at six to fifteen rounds per minute compared to a regular muzzleloader, their needles warped after repeating shooting and had to be replaced. And in the case of the Chassepot, their rubber seals in the breech would deteriorate and require swapping. Once metal cartridges were invented a decade later, the needle rifles were replaced with fully fledged bolt action rifles as we know them.
**Lever-action: The cool kid of the single-action club; lever-action weapons are those where you have to use a lever to chamber a new round, which was usually mounted near the trigger. Great for shooting from horseback, not so great lying on the ground. This type was made popular by Winchester during the frontier age of the Wild West and even more by Arnold Schwarzenegger when he used a lever-action shotgun during Terminator 2. Tend to be chambered for pistol cartridges and intermediate rifle cartridges because its metalurgy and action weren't strong enough for full rifle cartridges till the 1890s, when bolt actions had started displacing it, and tube magazines requiring flat nosed rimed cartridges while market forces limit them to cartridges that are still made (a crossover that's essentially just .22lr, revolver cartridges, .30-30 and .45-70).
**Pump-action: A pump action is where you had to pull the "pump" of the weapon to cycle a new round. This is the most common action used by shotguns. A few rifles used this setup as well (but only with round bullet heads as pointed bullets have the risk of setting off the primers), and there is one instance of a bunch of madmen creating a pump-action 3+1 (three in the tube, one in the chamber) 40mm grenade launcher. 
*Automatic action/Self-loading: Unlike single-shot weapons, it uses gasses expelled by the cartridge or recoil to power a mechanism that automatically chambers a new round after each shot. Generally speaking, the semi-automatic to fully-automatic action is determined by the trigger sear, which may either inhibit the hammer from hitting against until the trigger is let go (semi-automatic), stops firing after a certain number of rounds have been fired (burst-fire), or continuously fires until ammo is expended (fully automatic).
**Semi-automatic: A semi-automatic weapon is any weapon that can fire after every trigger pull, with the user only needing to work the action after reloading a completely empty gun. Most handguns and many rifles are semi-automatic.
**Burst-Fire: A setting sometimes included on automatic weapons, each trigger pull fires several rounds before stopping automatically. Fully automatic fire in a handheld gun tends to very quickly go off target due to muzzle rise, but by limiting fire to a controlled burst, the gun is easier to keep trained on target. The main purpose for this setting is to defeat personal body armor; many types of armor such as ceramic inserts are only designed to reliably stop one rifle bullet, not a close grouping of several hits in succession.
**Fully-automatic: A fully-automatic weapon is any weapon that can fire automatically, so long as the trigger is depressed, rather than pulled each time like how semi-autos work. Automatic weapons tend to be banned for civilian use outside of firing ranges and are only available to military even in countries liberal with gun rights.

===Ammo Storage and Feeding===
This refers to how ammunition is given to the weapon. Also the topic of a /k/ommando's greatest sources of rage; the clip vs magazine misconception. This section will give a short explanation for both.

*Pepperbox - basically the bastard child of a break-action long gun and a revolver; a pepperbox gun has 3 or more barrels loaded and ready to fire, with the gun rotating between the loaded barrels to fire in relatively quick sucession. As this was one of the only ways to get more than a single shot in less than a minute without resorting to carrying multiple guns; the design was wacky but popular during the olden ages (and still today to a limited extent for some pocket pistols). The Empire's Outriders are armed with these weapons if you want a visual of what they looked like. Most pepperboxes where smoothbore since they were made on the cheap and never intended for more than point blank fire.

*Harmonica - Also called a ''slide gun,'' it was a precursor to the detachable magazine, it was basically a reusable steel block with multiple holes drilled into the sides to house preloaded powder and shot alongside percussion caps. While loaded from the side near the hammer on adapted breechloading firearms and manually reset between shots, it still did not solve the problem of gas leakage that plagued early non-muzzleloaders until the invention of brass bullet cartridges.

*Volleygun - A variant of the olden multi-barrel family, the volleygun foregoes single, accurate shots in favor of alpha-striking to saturate the area in lead, having anywhere between 2 to 20 barrels (and you can go well beyond this if your contraption can handle it) and the size ranging anywhere from a pistol to a full-sized artillery piece. As the name describes; it fires all of it's payload in a single volley, basically making it a one-man firing line. This style of weaponry gradually fell out of disuse as more modern firearms were developed (mainly self-loading weapons, which were more reliable and accurate), but is notably still used for the "Metal Storm", a prototype weapon with truly absurd number of gun barrels that go off simultaneously to shred the ever-living fuck out of it's target. The only types still in use today are double barreled shotguns and derringers.

*Superposed load - the disadvantage to using a multi-barreled firearm is that it adds a lot of weight to the firearm. One alternative was to simply stack multiple bullets and charges into the same barrel, and then have the firearm set them off sequentially. The early version of this mechanism was prone to failures, as the bullets were not self-contained and a poor gas seal could result in multiple charges going off, destroying the gun (and the user if unlucky enough) if it was not designed to handle the stress. The King of England was once gifted several such guns and after one exploded killing the guard firing it the whole affair was deemed a very creative attempt at assassination. However, this setup was revived with the invention of caseless bullets and electronic triggers used most prominently in Metal Storm weapons. If combined with multiple barrels, a metal storm weapon can have a bewildering rate of fire. So far the technology is mostly used in multi-shot grenade launchers.

*Bullpup - A bullpup is any weapon where its action is located in the behind the trigger, instead of in front. Bullpups have the advantage of being more compact, whilst still retaining the same ballistic properties of a full-sized weapon as it can use the same barrel length, but the weapon's profile is shorter thanks to the design. However, some of the disadvantages are it not being readily ambidextrous (being that the shell ejection port is directly beside the shooter's face, you cannot switch to a left-hand grip so easily if the situation calls for it. Some bullpups can have ambidextrous controls, but implementing them typically requires tools and is not something you can swap during a fight). One of the more technical problems is weight distribution. Unlike traditional firearms where the weight is typically in the center, allowing both left and right arms to distribute the weight of the gun: most of the bullpup's weight is in the back, so most of the work is being lumped onto the dominant hand, which can cause fatigue faster. The other is poor trigger pull due to the distance from trigger to action, though there are aftermarket kits for many that can mitigate it a good deal. Modern pistols and many SMGs that feed from inside the grip are ''technically'' bullpups, since their magazine and action are behind the trigger and connected by a transfer bar, but they generally aren't counted as such. Despite their on-paper advantages, bullpups have been a hard sell on account of most of their early offerings being either hideously expensive, or finicky garbage, or inciting visceral digust just looking at it, or just straight up not-American enough to make it out of subcommittee at the Pentagon. Their lack of reach with a bayonet is a hindrance (even with modern firearms, room-to-room combat and POW control still use bayonets) while their difficulty with being modular or customizable makes each model a one-trick pony, and ambidextrous usage is very difficult to achieve. On the other hand, a good example is pretty convenient to drop weight and length without losing effectiveness for when space is at a premium.

*Clip - A clip is a device, used for bundling bullets together for immediate use. Guns cannot use clips by themselves, they have to be loaded into a magazine first to be used by a gun. The most common version were "stripper clips": each clip held about five bullets, and to load the rifle you placed the clip on top of the magazine, then squeezed the bullets off the clip into the magazine. Another type, en bloc, was used by the M1 Garand and held eight bullets in a 2x4 configuration. The entire clip was put in the magazine, with the clip being ejected after being emptied. The last kind is the moon (or half-moon) clip, used specifically for revolvers, which holds bullets in a circular formation for loading the chamber up in one go. Clips are still used today, but exclusively to speed up loading external magazines. Filling external magazines generally requires a small disposable tool, which is included in any ammo lot packaged on stripper clips.

*Speedloader - A speedloader is essentially a clip that has moving parts, usually to aid with holding and/or loading ammunition. Two common types exist. The first is similar to a moon clip in that it holds bullets so that they can all be loaded into a revolver simultaneously, but use a locking mechanism to secure the bullets while they are being carried, then release them once they are loaded into the cylinder. While not as fast as a moon clip, it still makes loading revolvers considerably faster. Another type of speedloader is the magazine loader, which is designed to reduce the spring pressure in a magazine, making it faster and easier to load.

*Magazine - The magazine is part of the weapon that houses and feeds actual ammo into the weapon. In the olden days, many guns had magazines that were built into the weapon itself and were fed using clips of ammo that were loaded after the gun ran out. Built-in magazines, however, severely limited the potential ammunition capacity of guns as they cannot be expanded without significantly making the gun larger and was a pain in the ass to reload (such as in the case of revolvers). To counter this; people designed guns whose magazines were detachable from the gun itself. This allowed people to easily expand the ammo cap of a gun, as they only needed to ensure that the extended magazine will fit into their gun and cycle properly, they no longer needed to re-work the entire structure of the gun to enlarge a built-in magazine. It also greatly increased a person's reload speed, as instead of fumbling around with several clips to ram down the gun: they just had to detach a magazine, pull one out of their vest/bag, load it in (charge the gun if needed), and they're good to go. High-capacity magazines tend to take on weird shapes rather than the standard flat box; the most common variant is the drum magazine, but there are also double drums, caskets, and helicals. Typically the weakest part of any firearm. A large part of the misconceptions of the M16 were related to the fucktarded idea that it should be issued with DISPOSABLE MAGAZINES! They were initially not intended for repeated use, empty the mag. Drop it, crush it under your boot, reload a brand new never used mag. Worked well till some bureaucrat ordered reusing them which alongside some other bureaucrats skipping the chrome lining for the barrel and issuing really shitty ammo made with spare parts caused regular failures. Newer iterations of the magazine have since addressed these issues.

*Belts - The belt is what it is; a long belt filled with bullets, which can either take the form of a cloth belt or linked by metallic chains. Belts are the common loading method of most machine guns, who typically have ammunition capacities well beyond 100 rounds. The reason for this is that it simplifies the operation of the gun (since belts do not require them to be fed to the gun with a mechanism like in traditional magazines) and makes them less prone to malfunctions (with a gun designed to shoot continuously; you wanna make sure that there's less critical moving parts to fuck up as it's firing it's 300th round at the enemy). Belts are also much easier to transport, as the belt can be folded several times to make it more compact, versus a solid magazine. This is mostly because until H&K put out their steel high reliability 5.56 nato mag, most magazines couldn't keep up with the fire rate and were too flimsy(The Soviet counterparts that used magazines, used AK pattern magazines which you can open a beer with and then load into the gun). Pretty much every man issued a M249 with the magwell adapter, will attest to how dire you must be for bullets in the air to use it but it's better then nothing when the belt is out and your buddies can toss you a couple mags rather than sitting on your thumb waiting for someone to drop their gun.