Editing Firearm (section)

===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.