M Machine Gun Components. The M machine gun has a hooded and semifixed front sight. The rear sight assembly mounts on the top of the cover and feed mechanism assembly.
The elevation knob drum has range settings from meters to 1, meters. Range changes are made on the M machine gun sight by rotating the elevation knob to the desired range setting. Rotation of the rear sight aperture peep sight is used for fine changes in elevation or range adjustments, such as during zeroing. Each click of the peep sight. One click moves the sight degrees, or one-half turn.
This equals a onehalf- mil change in elevation, which is. The sight adjusts for windage by rotating the windage knob. Each click of windage adjustment also equals a one-halfmil change, which is. There is also a windage sliding scale marked with index lines for centering the rear sight aperture. The safety is in the trigger housing. The safety is pushed from left to right red ring not visible to render the weapon safe, and the bolt cannot be released to go forward.
The safety is pushed from right to left red ring visible to render the weapon ready to fire. The cocking handle on the right side of the weapon is used to pull the bolt to the rear. Sponsored advertisement:. Sponsored Advertisement:. This is a private website that is not affiliated with the U. Armed Forces or Department of Veteran Affairs. This site is not connected with any government agency. If you would like to find more information about benefits offered by the U.
Department of Veteran Affairs, please visit the official U.As part of the Unified Community Platform project, your wiki has been migrated to the new platform. Read more here. Machine Gun Parts are one of the Parts types used in crafting. They cannot themselves be crafted, but can be bought from a Trader or obtained via scrapping an appropriate item.
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U.S. Military Machine Guns
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All rights reserved. This site is a part of Fandom, Inc. Support Contact PRO. Entity Damage. Block Damage. Effective Range. Durability Min Quality. Durability Max Quality. Butcher Tool. Butcher Damage Multiplier. Butcher Resource Multiplier.A machine gun is a fully automatic firearm designed for rapid, sustained fire.
Other fully automatic weapons, such as assault rifles and submachine gunsare not designed for sustained fire, and not considered machine guns.
As a class of military rapid-fire guns, machine guns are fully automatic weapons designed to be used as support weapons [ definition needed ] and generally used when attached to a mount or fired from the ground on a bipod or tripod. Many machine guns also use belt feeding and open bolt operation, features not normally found on other weapons.
Unlike semi-automatic firearmswhich require one trigger pull per round fired, a machine gun is designed to fire for as long as the trigger is held down. Nowadays the term is restricted to relatively heavy weapons, able to provide continuous or frequent bursts of automatic fire for as long as ammunition lasts. Machine guns are normally used against personnel, aircraft and light vehicles, or to provide suppressive fireeither directly or indirectly.
They are commonly mounted on fast attack vehicles such as technicals to provide heavy mobile firepower, armored vehicles such as tanks for engaging targets too small to justify use of the primary weaponry or too fast to effectively engage with it, and on aircraft as defensive armament or for strafing ground targets, though on fighter aircraft true machine guns have mostly been supplanted by large-caliber rotary guns.
Some machine guns have in practice sustained fire almost continuously for hours; other automatic weapons overheat after less than a minute of use. Because they become very hot, the great majority of designs fire from an open boltto permit air cooling from the breech between bursts. They also usually have either a barrel cooling system, slow-heating heavyweight barrel, or removable barrels which allow a hot barrel to be replaced.
Although subdivided into " light ", " medium ", " heavy " or " general-purpose ", even the lightest machine guns tend to be substantially larger and heavier than standard infantry arms. Medium and heavy machine guns are either mounted on a tripod or on a vehicle; when carried on foot, the machine gun and associated equipment tripod, ammunition, spare barrels require additional crew members.
Light machine guns are designed to provide mobile fire support to a squad and are typically air-cooled weapons fitted with a box magazine or drum and a bipod; they may use full-size rifle rounds, but modern examples often use intermediate rounds. Medium machine guns use full-sized rifle rounds and are designed to be used from fixed positions mounted on a tripod.
Heavy machine gun is a term originating in World War I to describe heavyweight medium machine guns and persisted into World War II with Japanese Hotchkiss M clones; today, however, it is used to refer to automatic weapons with a caliber of at least.
A general-purpose machine gun is usually a lightweight medium machine gun that can either be used with a bipod and drum in the light machine gun role or a tripod and belt feed in the medium machine gun role.
Machine guns usually have simple iron sights, though the use of optics is becoming more common. A common aiming system for direct fire is to alternate solid "ball" rounds and tracer ammunition rounds usually one tracer round for every four ball roundsso shooters can see the trajectory and "walk" the fire into the target, and direct the fire of other soldiers.
Many heavy machine gunssuch as the Browning M2. Other automatic weapons are subdivided into several categories based on the size of the bullet used, whether the cartridge is fired from a closed bolt or an open boltand whether the action used is locked or is some form of blowback. Fully automatic firearms using pistol-calibre ammunition are called machine pistols or submachine guns largely on the basis of size; those using shotgun cartridges are almost always referred to as automatic shotguns.
The term personal defense weapon PDW is sometimes applied to weapons firing dedicated armor-piercing rounds which would otherwise be regarded as machine pistols or SMGs, but it is not particularly strongly defined and has historically been used to describe a range of weapons from ordinary SMGs to compact assault rifles. Selective fire rifles firing a full-power rifle cartridge from a closed bolt are called automatic rifles or battle rifleswhile rifles that fire an intermediate cartridge are called assault rifles.
Assault rifles are a compromise between the size and weight of a pistol-calibre submachine gun and a full-size battle rifle, firing intermediate cartridges and allowing semi-automatic and burst or full-automatic fire options selective firesometimes with both of the latter present.
Many machine guns are of the locked breech type, and follow this cycle:. The operation is basically the same for all locked breech automatic firearms, regardless of the means of activating these mechanisms.
There are also multi-chambered formats, such as revolver cannonand some types, such as the Schwarzlose machine gun etc. Most modern machine guns are of the locking type, and of these, most utilize the principle of gas-operated reloadingwhich taps off some of the propellant gas from the fired cartridge, using its mechanical pressure to unlock the bolt and cycle the action.
The Russian PK machine gun is an example.Machine gunautomatic weapon of small calibre that is capable of sustained rapid fire. Most machine guns are belt-fed weapons that fire from to 1, rounds per minute and will continue to fire as long as the trigger is held back or until the supply of ammunition is exhausted. The machine gun was developed in the late 19th century and has profoundly altered the character of modern warfare. Modern machine guns are classified into three groups. The light machine gunalso called the squad automatic weapon, is equipped with a bipod and is operated by one soldier; it usually has a box-type magazine and is chambered for the small-calibre, intermediate-power ammunition fired by the assault rifles of its military unit.
PK machine gun
The medium machine gunor general-purpose machine gun, is belt-fed, mounted on a bipod or tripodand fires full-power rifle ammunition. Since the term has designated an automatic weapon firing ammunition larger than that used in ordinary combat rifles; the most widely used calibre is. From the introduction of firearms in the late Middle Ages, attempts were made to design a weapon that would fire more than one shot without reloading, typically by a cluster or row of barrels fired in sequence.
In James Puckle in London patented a machine gun that was actually produced; a model of it is in the Tower of London. The introduction of the percussion cap in the 19th century led to the invention of numerous machine guns in the United States, several of which were employed in the American Civil War. In all of these either the cylinder or a cluster of barrels was hand-cranked. The most successful was the Gatling gunwhich in its later version incorporated the modern cartridgecontaining bulletpropellant, and means of ignition.
Hiram Stevens Maxim of the United States was the first inventor to incorporate this effect in a weapon design. The Maxim machine gun c. Some of these utilized another property of the even burning of smokeless powder: small amounts of the combustion gas were diverted through a port to drive a piston or lever to open the breech as each round was fired, admitting the next round.
As a result, during World War I the battlefield was from the outset dominated by the machine gun, generally belt-fed, water-cooled, and of a calibre matching that of the rifle.
Except for synchronizing with aircraft propellers, the machine gun remained little changed throughout World War I and into World War II. Since then, innovations such as sheet-metal bodies and air-cooled, quick-changing barrels have made machine guns lighter and more reliable and quick-firing, but they still operate under the same principles as in the days of Hiram Maxim.
Most machine guns employ the gas generated by the explosion of the cartridge to drive the mechanism that introduces the new round in the chamber. The machine gun thus requires no outside source of power, instead using the energy released by the burning propellant in a cartridge to feed, load, lock, and fire each round and to extract and eject the empty cartridge case.
This automatic operation may be accomplished by any of three ways: blowbackrecoil, and gas operation.
In recoil operation, the bolt is locked to the barrel immediately after a round is fired; both the bolt and barrel recoil, but the barrel is then returned forward by its own spring while the bolt is held to the rear by the locking mechanism until a fresh round has fallen into place in the opened breech. More common than either of these two methods is gas operation. In this method, the energy required to operate the gun is obtained from the pressure of gas tapped off from the barrel after each cartridge explodes.
In a typical gas-operated machine gun, an opening or port is provided in the side of the barrel at a point somewhere between the breech and the muzzle. When the bullet has passed this opening, some of the high-pressure gases behind it are tapped off through the hole and operate a piston or some similar device for converting the pressure of the powder gases to a thrust. This thrust is then used through a suitable mechanism to provide the energy necessary for performing the automatic functions required for sustained fire: loading, firing, and ejection.
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Britannica Quiz. Gadgets and Technology: Fact or Fiction? Get exclusive access to content from our First Edition with your subscription. Subscribe today.Submachine Gun parts are very simple, as any combination of parts may spawn together to make a particular submachine gun.
Note: Submachine gun parts also include a grip. However, the grip does not affect any of the weapon's attributes. Each grip design is specific to the weapon's manufacturer. The body of a submachine gun is usually easy to identify, since the model name declares it straightforwardly.
The stock is completely specified within the weapon's model number. For unique weapons without a model number, the stock is easily distinguishable in profile. The stock affects both overall weapon stability recoil reductionaccuracy and reload speed. In addition, some stocks offer a minor tech upgrade. Note that the weapon's model number is a function of both its stock model number listed here as well as its magazine model number.
The magazine is specified within the weapon's model number. For unique weapons without a model number, they're mostly easily distinguished by the weapon's ammo capacity.
Primarily, the magazine specifies the number of rounds of ammunition carried by the submachine gun; beyond that, it influences weapon damage and reload speed, and can affect rate of fire and the weapon's tech level as well.
Note that the weapon's model number is a function of both its magazine model number listed here as well as its stock model number. While submachine gun barrels do not affect the weapon's model number, they are easy to distinguish visually from their overall length and the profile of the flash suppressor or shroud at the end of the barrel.
Barrels strongly affect the weapon's damage and accuracy, and can influence recoil reduction and weapon tech level as well. On weapons without an elemental accessory, however, fires low-velocity rounds that travel in a helical path, ricocheting off of obstacles, and leaving visible tracer in the air. As with all weapons in Borderlandsthe grip does not affect any of the submachine gun's attributes.
Each grip design is specific to the weapon's manufacturer, therefore each SMG of the same manufacturer will have the same grip. SMG sights are easily distinguished by the zoom statistic published on the weapon's gun card. They have no further effect on the weapon's attributes.
Unlike other parts, the accessory part does not have a consistent effect on a weapon's attributes: some accessories boost tech, some alter recoil, some increase damage. Some accessories grant a special property to the weapon, Elemental Damagebeyond mere attribute modification; furthermore, almost all accessories make their weapon eligible for a special name prefix or title describing the weapon's altered behavior, such as "Relentlesss" or "Double.
Most accessories are easy to differentiate visually. An accessory may or may not be present on any given submachine gun, and no more than a single accessory may be present, which is why the game will never spawn, for example, a legendary Double Hellfire.
Each glow in the color corresponding to their element, making them easily identifiable.
The accessory of the legendary Hellfire resembles an ordinary elemental accessory.Click here to read the full article. One of the common things heard after nearly every tragic mass shooting is that semi-automatic firearms —the AR is often called out specifically — should be "banned" like machine guns.
There is just one problem with that argument, machine guns aren't actually illegal. While this article isn't meant as legal advice, and one should always consult with local authorities, here are the quick facts on the legality of machine gun ownership.
In 37 states it is possible to buy a machine gun today. However, it isn't as easy as going to a local gun shop or even a gun show. The NFA restricted the sales, ownership, use, and transport of short-barreled rifles and shotguns, machine guns, silencers and suppressors and an all-encompassing "destructive device.
However, the law "restricts" but it does not "prohibit" and that is something that has been misunderstood and misreported for years. Items on the NFA list can still be owned. However, the items must be registered at the federal level, and this is a bit harder than it sounds.
There is a common misconception that an individual must have a "Class III" license to own a machine gun. This is not true — but it also isn't completely wrong, a point this author will get to. In those other 13 states — which not surprisingly include California, New York, New Jersey, and Massachusetts — state law has banned such ownership and for gun collectors, there is no magic loophole or really any way around it.
It isn't possible to be a resident of Ohio, buy a machine gun, and move to Illinois where it is illegal and think it is OK.
Once this is done you wait. And then you wait some more. Unlike the National Instant Criminal Background Check that is used to buy a firearm at a gun shop, nothing is "instant," "quick" or "speedy" in this procedure.
When buying any NFA item, patience isn't a virtue, it is required. There is no way to rush the process and generally takes around nine months. There are a couple of other points that need to be mentioned. The first was the Gun Control Act ofwhich added language about "destructive devices" but also expanded the definition of a machine gun. First, it offered an amnesty that allowed many older guns — including those that may have been brought back during World War II — to be registered, but it also banned the importation of foreign machine guns that could be sold to civilians.
The GCA also essentially regulated "dewats" or deactivated war trophies. In other words, if Grandpa had the barrel of his Thompson submachine gun welded shut after World War II, the government didn't really see that as a functional machine gun.
For a gun to be truly deactivated per ATF's guidelines the receiver needed to be cut or otherwise destroyed. But Grandpa could keep the Tommy Gun, so long as it was registered. However, the bill codified some gun control measures, and prohibited civilian ownership or transfer of machine guns made after May 19, That meant only the machine guns that were produced — including those from old parts — prior to that date could be registered.
The law also didn't come with the same type of amnesty that was offered in There is simply no way around it. FOPA has resulted in the cost of legal machine guns to skyrocket, simply because what is out there is all there can ever be.
While it is possible to become a dealer of such weapons this isn't an easy process. Moreover, when said dealer retires from the business it is still impossible or at least illegal to retain any post-sample firearms. Machine guns are complex items to buy, but as noted there is a small collector market.It remains in use as a front-line infantry and vehicle-mounted weapon with Russia's armed forces. The PK has been exported extensively and produced in several other countries under license.
In a machine gun prototype, developed by G. Nikitin and Yuri M. Sokolov, successfully passed field tests. Based on the results of the tests it was decided in to manufacture a batch of Nikitin-Sokolov machine guns for service tests and then put the machine gun into production at the Kovrov Mechanical Plant. Kalashnikovand further consisting of V. Krupin, V. Pushchin, A. Kryakushin, as well as Startsev, Kamzolov, Koryakovtsev, Yuferev, joined the competition.
Their machine gun prototype was based on the well-proven gas-operated rotary-bolt design of the Kalashnikov-pattern arms. The Kalashnikov and the Nikitin-Sokolov prototypes underwent service tests in the Central AsianOdessaand Baltic Military Districtsas well as at the Vystrel officer training courses in late The Kalashnikov design was found to be more reliable and cheaper to manufacture than the design of Grigory Nikitin and Yuri Sokolov.
Nikitin's and Sokolov's machine gun design was later used in the The PK uses the 7. The bolt and carrier design are similar to the AK and other modernized Kalashnikov-pattern weapons, as is the stripping procedure performed to remove those mechanisms from the gun for cleaning. The bolt and bolt carrier are however oriented upside down compared to the AKM, with the piston and gas system being underneath the barrel. Unlike the AKM and RPK the PK machine gun series is an open bolt design, which improves heat management during automatic fire compared to closed bolt designs and helps avoiding the dangerous phenomenon known as " cook-off ", wherein the firing chamber becomes so hot that the propellant contained in a chambered round unintentionally ignites, making the weapon fire until the ammunition is exhausted.
Open bolt designs typically operate much cooler than closed bolt designs due to the airflow allowed into the chamber, action and barrel during pauses between bursts, making them more suitable for constant full-automatic weapons such as machine guns.
General-purpose machine guns like the PK are further normally issued with several quick change barrels that during prolonged intense use are swapped out allowing one barrel to cool while the machine gun fires with the other.
The rimmed 7.
The belt is mounted from the right side into the feedway of the PK machine gun. The PK uses a non-reciprocating charging handle on the right side of the receiver to charge the gun. Since the PK uses a rimmed rifle cartridge and closed-link belts used for feeding, a two-stage feed mechanism with a preliminary extraction of a cartridge from a belt link was preferred over a direct ammunition feed design often used for rimmed cartridges.