The DP-12 is a bullpup 12- gauge pump action double-barreled shotgun designed by Standard Manufacturing . It has two tube magazines , each of which feeds its own barrel. Each magazine tube can hold up to seven 2.75-inch (70 mm) 12-gauge shotshells or six 3-inch (76 mm) shotgun shells; 16 ( 2 + 3 ⁄ 4 ") or 14 (3") in total with indicator windows.
99-404: The DP-12 shotgun is a manually operated, pump action weapon. The first trigger pull fires the right barrel and the second fires the left. The sliding forend is connected to the bolt by dual operating bars. Ammunition is fed from two independent magazine tubes, located below the barrels. Rounds are loaded into the magazines through a large loading/ejection port, located at the bottom rear of
198-493: A speedloader ; or the en bloc clip for M1 Garand rifles, among others. Use of the term "clip" to refer to detachable magazines is a point of strong disagreement. The earliest firearms were loaded with loose powder and a lead ball, and to fire more than a single shot without reloading required multiple barrels , such as in pepper-box guns, double-barreled rifles , double-barreled shotguns , or multiple chambers , such as in revolvers . The main problem with these solutions
297-604: A "quad-column", can hold a large amount of ammunition. It is wider than a standard box magazine, but retains the same length. Casket magazines can be found on the Suomi KP/-31 , Hafdasa C-4 , Spectre M4 , QCW-05 and on 5.45×39mm AK rifle derivatives, and now the Kel-Tec CP33 as well. Magpul has been granted a patent for a STANAG -compatible casket magazine, and such a magazine was also debuted by SureFire in December 2010, and
396-600: A conventional detachable box, but it was non-detachable and only reloaded by using 20 round stripper clips . Box magazines may come in straight, angled, or curved forms depending if the cartridges are tapered rimmed/rimless or bottlenecked. Straight or slightly curved magazines work well with straight-sided rimless cartridges, angled magazines work well with straight-sided rimmed/rimless cartridges and curved magazines work well with rimmed/rimless tapered cartridges. Pistol magazines are often single- or double-stack with single-feed, which may be due to this design being slimmer at
495-483: A crucial safety feature for hunting dangerous game: when empty the follower stops the bolt from engaging the chamber, informing the operator that the gun is empty before any attempt to fire. The first successful semi-automatic pistol was the Borchardt C-93 (1893) and incorporated detachable box magazines. Nearly all subsequent semiautomatic pistol designs adopted detachable box magazines. The Swiss Army evaluated
594-563: A drum magazine's extra capacity is its added weight that, combined with the gun, can affect handling and prolonged use. Drum magazines can be more difficult to incorporate into combat gear compared to more regular, rectangular box magazines. Many drum-fed firearms can also load from conventional box magazines, such as the Soviet PPSh-41 submachine gun, RPK light machine gun, and the American Thompson submachine gun . The term "drum"
693-425: A forward grip or other accessories. The barrels come threaded with a Tru-Choke thread pattern and two flush-mount spreader choke tubes. There are two optional chokes from the manufacturer, the doorbuster tactical choke and stiletto choke. There are several different color variants of this shotgun. They include black, flat-dark earth, green, tan, gold and black & gold two-tone. Pump action Pump action
792-718: A position where it may be readily loaded into the barrel chamber by the firearm's moving action . The detachable magazine is sometimes colloquially referred to as a " clip ", although this is technically inaccurate since a clip is actually an accessory device used to help load ammunition into a magazine or cylinder. Magazines come in many shapes and sizes, from integral tubular magazines on lever-action and pump-action rifles and shotguns, that may hold more than five rounds, to detachable box magazines and drum magazines for automatic rifles and light machine guns , that may hold more than fifty rounds. Various jurisdictions ban what they define as " high-capacity magazines ". With
891-526: A similar mechanism to both load a pellet and compress a spring piston for power, or pneumatic guns where a pump is used to compress the air used for power. See the airgun article for information on how spring piston and pneumatic airguns work. The 43mm GM-94 is a pump-action grenade launcher developed by the KBP design bureau for use by Russian special forces . It carries three rounds in an above-the-barrel tubular magazine. Another pump-action grenade launcher
990-415: A single round of ammunition without manual reloading require some form of magazine designed to store and feed cartridges into the firearm's action. Magazines come in many shapes and sizes, with the most common type in modern firearms being the detachable box type. Most magazines designed for use with a reciprocating bolt firearm (tube fed firearms being the exception) make use of a set of feed lips which stop
1089-486: A single-feed design the top cartridge touches both lips and is commonly used in single-column box magazines, while a staggered feed magazine (sometimes called "double-feed" magazine, not to be confused with the firearm malfunction ) consists of a wider set of lips so that the second cartridge in line forces the top cartridge against one of the lips. The staggered-feed design has proven more resistant to jamming in use with double-column magazines than single-feed variants, since
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#17328589106271188-417: A sleeve around the grip area of the stock which the shooter would slide back and forward to cycle the gun. This was done because the forend based pump action was under patent at the time. Pump-action shotguns , also called pump shotguns , slide-action repeating shotguns or slide-action shotguns are the most commonly seen pump-action firearms. These shotguns typically use a tubular magazine underneath
1287-414: A sliding handguard underneath the barrel was the firearm patented by William Krutzsch of Britain on the 27th of August in 1866, a few months after Meigs. Many older pump-action shotguns can be fired faster than modern ones, as they often did not have a trigger disconnector , and were capable of firing a new round as fast as the pump action was cycled, with the trigger held down continuously. This technique
1386-420: A special feed cover. The 75 rounds of ammunition were evenly distributed in each side of the magazine with a central feed "tower" where the ammunition is fed to the bolt. The ammunition was fed by a spring force, with rounds alternating from each side of the double drum so that the gun would not become unbalanced. Pan magazines differ from other circular magazines in that the cartridges are stored perpendicular to
1485-510: A trigger disconnector, which disconnects the trigger from the sear as the bolt moves back, so that the trigger must be released and pulled again to fire the shotgun after it closes. Many early pump shotguns, such as the Winchester 1897 , did not have trigger disconnectors, and would, if the trigger were held back, fire immediately upon closing. Due to the higher rate of fire that this allows, some shooters prefer models without this feature, such as
1584-506: A wide range of national militaries. In 1890 the French adopted the 8mm Lebel Berthier rifles with 3-round internal magazines, fed from en bloc clips; the empty clips were pushed from the bottom of the action by the insertion of a loaded clip from the top. In the late 19th century, there were many short-lived designs, such as the M1895 Lee Navy and Gewehr 1888 , eventually replaced by
1683-518: Is a type of box magazine with another magazine placed in front. When firing, the bolt travels further back past the front section magazine until the rear section is empty, then uses the front section. Firearms using tandem magazines are the Special Purpose Individual Weapon (SPIW) and Gerasimenko VAG-73. The rotary (or spool) magazine consists of a cylindrical sprocket actuated by a torsion spring , with cartridges fitting between
1782-627: Is a type of manual firearm action that is operated by moving a sliding handguard on the gun's forestock . When shooting , the sliding forend is pulled rearward to eject any expended cartridge and typically to cock the hammer or striker , and then pushed forward to load a new cartridge into the chamber . Most pump-action firearms use an integral tubular magazine , although some do use detachable box magazines . Pump-action firearms are typically associated with shotguns , although it has also been used in rifles , grenade launchers , and other types of firearms. A firearm using this operating mechanism
1881-453: Is also likely that battlefield experience had proven the futility of this philosophy. One of the last new clip-fed, fixed-magazine rifles widely adopted that was not a modification of an earlier rifle was the M1 Garand . The M1 Garand was the first gas-operated semi-automatic rifle adopted and issued in large numbers as the standard service rifle of any military in the world. The M1 Garand
1980-524: Is called a slamfire , and was often used in conjunction with the M1897 and M1912 shotguns in World War I trench warfare. Modern pump-action designs are a little slower than a semi-automatic shotgun , but the pump-action offers greater flexibility in selection of shotshells , allowing the shooter to mix different types of loads and for using low-power or specialty loads. Semi-automatic shotguns must use some of
2079-405: Is colloquially referred to as a pumpgun . Because the forend is manipulated usually with the support hand, a pump-action firearm is much faster than a bolt-action and somewhat faster than a lever-action , as it does not require the trigger hand to be removed from the trigger while reloading. Also because the action is cycled in a linear fashion, it creates less torque that can tilt and throw
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#17328589106272178-476: Is especially important when hunting, as many locations have legal limits on the magazine capacity: for example, three rounds for shotguns and five rounds for rifles. The BSA Machine Carbine used a unique pump-action that also required twisting the handguard. Another variant was the Burgess Folding Shotgun from the late 19th century where instead of manipulating the forend to cycle the action, it had
2277-424: Is much more common because of its ability to store more rounds), since a staggered column is actually two single side-by-side vertical columns offset by half of the diameter of a round. As the firearm cycles, cartridges are moved to the top of the magazine by a follower driven by spring compression to either a single-feed (center-feed) position or side-by-side (staggered-feed) positions. Box magazines may be integral to
2376-603: Is now sold as the MAG5-60 and MAG5-100 high capacity magazine (HCM) in 60 and 100 round capacities, respectively, in 5.56mm for AR-15 compatible with M4/M16/AR-15 variants and other firearms that accept STANAG 4179 magazines. Izhmash has also developed a casket magazine for the AK-12 . Desert Tech have also released the QMAG-53 compatible Quattro-15 lower receiver for the AR-15. A tandem magazine
2475-411: Is removed from the rifle. It operates reliably with cartridges of different lengths. It is insertable and removable at any time with any number of cartridges. These features allow the operator to reload the gun infrequently, carry magazines rather than loose cartridges, and to easily change the types of cartridges in the field. The magazine is assembled from inexpensive stamped sheet metal. It also includes
2574-471: Is sometimes applied to a belt box for a belt-fed machine gun, though this is just a case that houses a length of ammunition belt, not a drum magazine. [REDACTED] Media related to Drum magazines at Wikimedia Commons Before WWII the Germans developed 75-round saddle-drum magazines for use in their MG 13 and MG 15 machine guns. The MG 34 machine guns could also use saddle-drum magazine when fitted with
2673-555: Is that they increase the bulk and/or weight of a firearm, over a firearm with a single barrel and/or single chamber. However, many attempts were made to get multiple shots from loading a single barrel through the use of superposed loads . While some early repeaters such as the Kalthoff repeater managed to operate using complex systems with multiple feed sources for ball, powder, and primer, easily mass-produced repeating mechanisms did not appear until self-contained cartridges were developed in
2772-581: Is the China Lake grenade launcher , which saw usage by the U.S. Navy SEALS in the Vietnam War in limited numbers. Magazine (firearms) A magazine , often simply called a mag , is an ammunition storage and feeding device for a repeating firearm , either integral within the gun (internal/fixed magazine) or externally attached (detachable magazine). The magazine functions by holding several cartridges within itself and sequentially pushing each one into
2871-600: Is the Krieghoff Semprio "in-line repeating rifle ". The Semprio is a reverse pump-action system that ejects cartridges when the fore-end is pushed forward and loads the chamber when pulled backward. The Semprio's 7-lug bolt head design displays a locking surface of 65 mm (0.101 in ) compared to the 56 mm (0.087 in ) of the Mauser M98 bolt-action rifle . The term pump-action can also be applied to various airsoft guns and air guns , which use
2970-414: Is typically fed from a tubular magazine underneath the barrel, which also serves as a guide to the movable forend. The rounds are fed in one by one through a port in the receiver, where they are pushed forward. A latch at the rear of the magazine holds the rounds in place in the magazine until they are needed. If it is desired to load the gun fully, a round may be loaded through the ejection port directly into
3069-506: Is wrapped around the bolt-action to save vertical space and ease loading from the side. The Krag-Jorgensen bolt-action rifle is the only firearm to use this type of magazine and it was adopted by the militaries of Denmark, Norway, and the United States in the late 19th century. Drum magazines are used primarily for light machine guns . In one type, a moving partition within a cylindrical chamber forces loose rounds into an exit slot, with
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3168-539: The American Civil War . The Spencer used a tubular magazine located in the butt of the gun instead of under the barrel and it used new rimfire metallic cartridges. The Spencer was successful, but the rimfire ammunition did occasionally ignite in the magazine tube and destroy the magazine. It could also injure the user. The new bolt-action rifles began to gain favor with militaries in the mid-1880s and were often equipped with tubular magazines. The Mauser Model 1871
3267-594: The Battle of the Little Bighorn , and being the basis for the iconic Winchester lever-action repeating rifle , which is still in production to the present day. The Henry and Winchester rifles would go on to see service with a number of militaries including Turkey. Switzerland and Italy adopted similar designs. The second magazine-fed firearm to achieve widespread success was the Spencer repeating rifle , which saw service in
3366-593: The Ithaca 37 , Stevens Model 520/620 , and Winchester Model 12 . When used in rifles , this action is also commonly called a slide action . In the late 19th and early 20th century it was referred to as a trombone action , because it functioned similarly to the musical instrument of the same name. Colt manufactured the Colt Lightning Carbine from 1884 to 1904 chambered in .44-40 caliber. The slide action Winchester Model 1890 chambered in .22 caliber
3465-674: The Luger pistol using a detachable box magazine in 7.65×21mm Parabellum and adopted it in 1900 as its standard sidearm. The Luger pistol was accepted by the Imperial German Navy in 1904. This version is known as Pistole 04 (or P.04). In 1908 the German Army adopted the Luger to replace the Reichsrevolver in front-line service. The Pistole 08 (or P.08) was chambered in 9×19mm Parabellum . The P.08
3564-526: The M1903 Springfield rifle and Gewehr 98 respectively. The Russian Mosin–Nagant , adopted in 1891, was an exception. It was not revolutionary; it was a bolt-action rifle, used a small-bore smokeless powder cartridge, and a fixed box magazine loaded from the top with stripper clips , all of which were features that were used in earlier military rifles. What made the Nagant stand out was that it combined all
3663-510: The M249 and other squad automatic weapons , can feed from both magazines and belts. Many of the first repeating rifles and shotguns , particularly lever-action rifles and pump-action shotguns, used magazines that stored cartridges nose-to-end inside of a spring-loaded tube that typically runs parallel underneath the barrel, or inside of the buttstock. Tubular magazines are also commonly used in .22 caliber bolt-action rimfire rifles, such as
3762-598: The Marlin Model XT . Tubular magazines and centerfire cartridges with pointed ( spitzer ) bullets present a safety issue: a pointed bullet may (through the forces of recoil or simply rough handling) strike the next round's primer and ignite that round, or even cause a chain ignition of other rounds, within the magazine. The Winchester Model 1873 used blunt-nosed centerfire cartridges as the .44-40 Winchester . Certain modern rifle cartridges using soft pointed plastic tips have been designed to avoid this problem while improving
3861-567: The Ruger American series, the semi-automatic Ruger 10/22 , the bolt-action Ruger 77/22 and the Steyr SSG 69 . A capsule magazine functions similar to a box magazine, but the spring and follower is stowed away when the magazine bottom is flipped open. The cartridges are loosely dumped into the magazine and spring-fed to the chamber when the bottom is closed. On the Krag-Jørgensen the magazine
3960-461: The Sturmgewehr 44 assault rifle concept with its 30-round detachable magazine. After WWII, automatic weapons using detachable box magazines were developed and used by all of the world's armies. Today, detachable box magazines are the norm and they are so widely used that they are simply referred to as magazines or "mags" for short. All cartridge-based single-barrel firearms designed to fire more than
4059-556: The United Kingdom ) is a device that is used to store multiple rounds of ammunition together as a unit, ready for insertion into the magazine or cylinder of a firearm. This speeds up the process of reloading the firearm as several rounds can be loaded at once, rather than one round being loaded at a time. Several different types of clips exist, most of which are made of inexpensive metal stampings that are designed to be disposable, though they are often re-used. The first clips used were of
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4158-446: The War to End All Wars , military planners failed to recognize the importance of automatic rifles and detachable box magazine concept, and instead maintained their traditional views and preference for clip-fed bolt-action rifles . As a result, many promising new automatic rifle designs that used detachable box magazines were abandoned. An important development that took place during this war was
4257-521: The en bloc system is that the firearm cannot be practically used without a ready supply of (mosty disposable) clips. Paul Mauser would solve this problem by introducing a stripper clip that functioned only to assist the user in loading the magazine quickly: it was not required to load the magazine to full capacity. He would continue to make improved models of rifles that took advantage of this new clip design from 1889 through 1898 in various calibers that proved enormously successful, and were adopted by
4356-550: The en bloc variety, developed by Ferdinand Mannlicher and first adopted by the Austro-Hungarian Army , which would be used Austro-Hungarians during the first world war in the form of the Mannlicher M1895 , derivatives of which would be adopted by many national militaries. The Germans used this system for their Model 1888 Commission Rifle , featuring a 5-round en bloc clip-fed internal box magazine. One problem with
4455-406: The gun barrel to hold the shells , though there are some variants that use a box magazine like most rifles. It's not uncommon to see extra ammunition stored in externally mounted "shell holder" racks (usually as "sidesaddle" on one side of the receiver , or on the buttstock ) for quick on-field reloading. The shells are chambered and extracted by pulling/pushing the sliding fore-end enveloping
4554-541: The 19th century. The first successful mass-produced repeating weapon to use a "tubular magazine" permanently mounted to the weapon was the Austrian Army's Girandoni air rifle , first produced in 1779. The first mass-produced repeating firearm was the Volcanic Rifle which used a hollow bullet with the base filled with powder and primer fed into the chamber from a tube called a "magazine" with an integral spring to push
4653-447: The 5-round stripper clips). Helical magazines extend the drum magazine design so that rounds follow a spiral path around an auger-shaped rotating follower or drive member , allowing for large ammunition capacity in a relatively compact package (compared to a regular box magazine of similar capacity). Early helical magazine designs include that patented by an unidentified inventor through the patent agent William Edward Newton in 1857 and
4752-447: The AK-47. The detachable magazine quickly came to dominate post-war military rifle designs. Firearms using detachable magazines are made with an opening known as a magazine well into which the detachable magazine is inserted. The magazine well locks the magazine in position for feeding cartridges into the chamber of the firearm, and requires a device known as a magazine release to allow
4851-682: The Mark II Lee-Metford , three years after the Schmidt-Rubin. The first pistol with a double-stack, staggered-feed magazine was the Mauser C96 although it was an integral design fed by stripper clips. The first detachable double-stack, single-feed magazine for pistols was probably the one patented by the American Elbert H. Searle in 1904 and adopted by Arthur Savage though he didn't apply it in practice to his designs until much later. One of
4950-540: The United States, a number of states have passed laws that ban magazines which are defined as "high-capacity" by statute. High-capacity or large-capacity magazines are generally those defined by statute to be capable of holding more than 10 to 15 rounds, although the definitions will vary by state. Other nations impose restrictions on magazine capacity as well. In Canada, magazines are generally limited to 5 rounds for rifles and shotguns (with some exceptions) and 10 rounds for handguns (with some exceptions), depending on
5049-415: The aerodynamic qualities of the bullet to match those available in bolt-action designs, therefore extending the effective range of lever-actions. The most popular type of magazine in modern rifles and handguns, a box magazine stores cartridges in a column, either one above the other or in staggered zigzag fashion. This zigzag stack is often identified as a double-column or double-stack (The double-stack
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#17328589106275148-504: The axis of rotation, rather than being parallel, and are usually mounted on top of the firearm. This type is used on the Lewis Gun , Vickers K , Bren Gun (only used in anti-aircraft mountings), Degtyaryov light machine gun , and American-180 submachine gun. A highly unusual example was found on the Type 89 machine gun fed from two 45-round quadrant-shaped pan magazines (each magazine held 9 of
5247-399: The bolt moves rearwards, a single shell is released from the magazine, and is pushed backwards to come to rest on the elevator. As the forend reaches the rear and begins to move forward, the elevator lifts up the shell, lining it up with the barrel. As the bolt moves forward, the round slides into the chamber, and the final portion of the forend's travel locks the bolt into position. A pull of
5346-480: The cartridges being stored parallel to the axis of rotation. After loading of the magazine, a wound spring or other mechanism forces the partition against the rounds. In all models a single column is pushed by a follower through a curved path. From there the rounds enter the vertical riser either from a single or dual drums. Cylindrical designs such as rotary and drum magazines allow for larger capacity than box magazines, without growing to excessive length. The downside of
5445-622: The cartridges in to the action, thence to be loaded into the chamber and fired. It was named after a building or room used to store ammunition. The anemic power of the Rocket Ball ammunition used in the Volcanic doomed it to limited popularity. . The Henry repeating rifle is a lever-action , breech-loading , tubular magazine-fed repeating rifle , and was an improved version of the earlier Volcanic rifle. Designed by Benjamin Tyler Henry in 1860, it
5544-400: The chamber, or cycled from the magazine, which is then topped off with another round. Pump shotguns with detachable box magazines or even drums exist, and may or may not allow the magazine to be inserted without stripping the top round. Nearly all pump-actions use a back-and-forward motion of the forend to cycle the action. Only a few pump-actions use the "reverse" or forward-and-back motion of
5643-491: The clips to hold them in place so they would not fall out while the weapon was being transported or fired. A STANAG magazine or NATO magazine is a type of detachable magazine proposed by NATO in October 1980. Shortly after NATO's acceptance of the 5.56×45mm NATO rifle cartridge, Draft Standardization Agreement ( STANAG ) 4179 was proposed in order to allow NATO members to easily share rifle ammunition and magazines down to
5742-417: The earlier features in a form that was to last virtually unchanged from its issue by Russia in 1894 through World War II and with its sniper rifle variants still in use today. A feature of many late 19th and early 20th century bolt-action rifles was the magazine cut-off, sometimes called a feed interrupter. This was a mechanical device that prevented the rifle from loading a round from the magazine, requiring
5841-506: The energy of each round fired to cycle their actions, meaning that they must be loaded with shells powerful enough to reliably cycle. The pump-action avoids this limitation. In addition, like all manual action guns, pump-action guns are inherently more reliable than semi-automatic guns under adverse conditions, such as exposure to dirt, sand, or climatic extremes. Thus, until recently, military combat shotguns were almost exclusively pump-action designs. Like most lever-action rifles and shotguns,
5940-447: The entire stripper clip into the hopper magazine. The Japanese Type 11 light machine gun was the only weapon system that used a hopper magazine. This light machine gun was fed by standard 6.5×50mmSR Arisaka stripper clips that were used by riflemen armed with the Type 38 bolt action rifle . The hopper is located on the left side of the receiver and held 6 of the 5-round clips, for a total of 30 rounds of ammunition. The hopper magazine
6039-478: The firearm or removable: There are, however, exceptions to these rules. The Lee–Enfield rifle had a detachable box magazine only to facilitate cleaning. The Lee–Enfield magazine did open, permitting rapid unloading of the magazine without having to operate the bolt-action repeatedly to unload the magazine. Other designs, like the Breda Modello 30 , had a fixed protruding magazine from the right side that resembled
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#17328589106276138-617: The first double-stack, single-feed box magazines was patented in November 1888 by an English inventor called Joseph James Speed of Waltham Cross. Another was patented in May 1887 by the Austro-Hungarian Karl Krnka. The bolt-action Krag–Jørgensen rifle, designed in Norway in 1886, used a unique rotary magazine that was built into the receiver. Like Lee's box magazine, the rotary magazine held
6237-463: The forend to cycle the action, a few examples are the Russian RMB-93 and South African NeoStead 2000 . The forend is connected to the bolt by one or two bars; two bars are considered more reliable because it provides symmetric forces on the bolt and pump and reduces the chances of binding. The motion of the bolt back and forth in a tubular magazine model will also operate the elevator , which lifts
6336-420: The gun in the stock, behind the pistol grip. Empty shells are ejected down through the same port. The safety is an ambidextrous AR style lever located above the grip. Sighting equipment is not included, but iron sights and/or a red dot sight can be installed using the standard Picatinny rail located above the barrels. A second Picatinny rail at the end of the slide (under the muzzles ) can be used for
6435-490: The gun off aim when repeat-firing rapidly. The first slide action patent was issued to Alexander Bain of Britain in 1854. The first pump action firearm with a magazine was technically the gun patented in America on the 22nd of May in 1866 by Josiah V. Meigs although the pump action was actuated via the trigger guard rather than a sliding handguard underneath the barrel. The first magazine-using pump-action firearm to operate using
6534-448: The increased use of semi-automatic and automatic firearms , the detachable magazine became increasingly common. Soon after the adoption of the M1911 pistol, the term "magazine" was settled on by the military and firearms experts, though the term " clip " is often used in its place (though only for detachable magazines, never fixed). The defining difference between clips and magazines is
6633-869: The individual soldier level. The U.S. M16 rifle magazine was proposed for standardization. Many NATO members subsequently developed or purchased rifles with the ability to accept this type of magazine. However, the standard was never ratified and remains a "Draft STANAG". The STANAG magazine concept is only an interface, dimensional, and control (magazine latch, bolt stop, etc.) requirement. Therefore, it not only allows one type of magazine to interface with various weapon systems, but also allows STANAG magazines to be made in various configurations and capacities. The standard STANAG magazines are 20, 30, and 40 round box magazines, but there are many other designs available with capacities ranging from one round to 60 and 100 round casket magazines, 90 round snail-drum magazines , and 100 round and 150 round double-drum magazines. In
6732-607: The internal magazine of the Evans Repeating Rifle , patented in the late 1860s. This type of magazine is used by the Calico M960 , PP-19 Bizon , CS/LS06 and KBP PP90M1 . The North Korean military uses a 100- to 150- round helical magazine in the Type 88 assault rifle. Helical magazines offer substantially more ammunition carriage; however, they are inherently complex designs. As such, they can be difficult to load and may decrease
6831-470: The invention of Schmeisser's Cone in 1916 by Hugo Schmeisser which allowed high-capacity double-stack, single-feed box magazine using guns to function reliably although it wasn't implemented on any of his designs until after World War One . The first reliable high-capacity double-stack, staggered-feed box magazine was developed by an American designer called Oscar V. Payne for the Thompson submachine gun around
6930-630: The magazine aligned horizontally over the barrel. Rather than being positioned laterally to the barrel like with the aforementioned examples, ammunition is positioned vertically with the bullet facing downward at a 90-degree angle relative to the barrel where it is fed into a rotary chamber before firing. The AR-57 , also known as the AR Five-seven, is an upper receiver for the AR-15 rifle lower receiver, firing FN 5.7×28mm rounds from standard FN P90 magazines. Another form of box magazine, sometimes referred to as
7029-546: The magazine through recoil or simply rough handling. This remains a concern with lever-action firearms today. Two early box magazine patents were the ones by Rollin White in 1855 and William Harding in 1859. A detachable box magazine was patented in 1864 by the American Robert Wilson. Unlike later box magazines this magazine fed into a tube magazine and was located in the stock of the gun. Another box magazine, closer to
7128-506: The magazine to be separated from the firearm. The Lee–Metford rifle, developed in 1888, was one of the first rifles to use a detachable box magazine, and the spare one could be optionally worn on soldier equipment , although with the adoption of the Short Magazine Lee–Enfield Mk I this became only detachable for cleaning and not swapped to reload the weapon. However, the first completely modern removable box magazine
7227-559: The magazine. One of the first detachable box magazines with a double-stack staggered-feed was the Schmidt-Rubin of 1889. Other examples include the patent of Fritz von Stepski and Erich Sterzinger of Austria-Hungary in May 1888 and the British patents by George Vincent Fosbery in 1883 and 1884. James Paris Lee is sometimes claimed to have invented the double-stack, staggered-feed detachable box magazine but he didn't design one until 1892 for
7326-535: The majority of pump-action shotguns and rifles use a fixed tubular magazine . This makes for slow reloading, as the cartridges have to be inserted individually into the magazine of the firearm. However, some pump-action shotguns and rifles, including the Russian Zlatoust RB-12 , Italian Valtro PM5 , American Remington 7600 series, and the Mossberg 590M, use detachable box magazines . A pump-action firearm
7425-535: The modern type though non-detachable, was patented in Britain (No. 483) by Mowbray Walker, George Henry Money and Francis Little in 1867. James Paris Lee patented a box magazine which held rounds stacked vertically in 1875, 1879 and 1882 and it was first adopted by Austria in the form of an 11mm straight-pull bolt-action rifle, the Mannlicher M1886 . It also used a cartridge clip which held 5 rounds ready to load into
7524-510: The narrowing of a magazine tube to a single-feed induces extra friction which the magazine springs needs to overcome. Some magazine types are strongly associated with certain firearm types, such as the fixed "tubular" magazine found on most modern lever-action rifles and pump-action shotguns. A firearm using detachable magazines may accept a variety of types of magazine, such as the Thompson submachine gun , most variations of which would accept box or drum magazines. Some types of firearm, such as
7623-527: The new assault rifle developed by the Germans. The SKS used a fixed magazine, holding ten rounds and fed by a conventional stripper clip. It was a modification of the earlier AVS-36 rifle, shortened and chambered for the new reduced power 7.62×39mm cartridge. It was rendered obsolete for military use almost immediately by the 1947 introduction of the magazine-fed AK-47 assault rifle, though it remained in service for many years in Soviet Bloc nations alongside
7722-405: The presence of a feed mechanism in a magazine, typically a spring-loaded follower, which a clip lacks. A magazine has four parts as follows: a spring, a spring follower, a body and a base. A clip may be made of one continuous piece of stamped metal and have no moving parts. Examples of clips are moon clips for revolvers; "stripper" clips such as what is used for military 5.56 ammo, in association with
7821-459: The reliability of feeding the weapon. The hopper magazine is a very unusual design. Unlike many other types of magazine-fed machine guns, which commonly used either box magazines or belts to feed ammunition into the firearm's action, the hopper magazine functioned differently. It would use stripper clips from an infantryman or machine gunner to supply ammunition for the machine gun to operate. This could be accomplished at any time, by just dropping
7920-532: The rifle ready to be quickly reloaded. The M14 rifle , which was based on incremental changes to the Garand action, switched to a detachable box magazine. However, the M14 with magazine attached could also be loaded via 5-round stripper-clips. The Soviet SKS carbine, which entered service in 1945, was something of a stopgap between the semi-automatic service rifles being developed in the period leading up to World War II, and
8019-467: The rounds side-by-side, rather than end-to-end. Like most rotary magazines, it was loaded through a loading gate one round at a time, this one located on the side of the receiver. While reliable, the Krag–Jørgensen's magazine was expensive to produce and slow to reload. It was adopted by only three countries, Denmark in 1889, the United States in 1892, and Norway in 1894. A clip (called a charger in
8118-449: The same time as Schmeisser's Cone. As World War II loomed, most of the world's major powers began to develop submachine guns fed by 20- to 40-round detachable box magazines. However, of the major powers, only the United States would adopt a general-issue semi-automatic rifle that used detachable box magazines: the M1 carbine with its 15-round magazines. As the war progressed the Germans developed
8217-407: The shells from the level of the magazine to the level of the barrel. After firing a round, the bolt is unlocked and the forend is free to move. The shooter pulls back on the forend to begin the operating cycle. The bolt unlocks and begins to move to the rear, which extracts and ejects the empty shell from the chamber, cocks the hammer, and begins to load the new shell. In a tubular magazine design, as
8316-428: The shooter to manually load each individual round as he fired, saving the rounds in the magazine for short periods of rapid fire when ordered to use them. Most military authorities that specified them assumed that their riflemen would waste ammunition indiscriminately if allowed to load from the magazine all the time. By the mid-20th century, most manufacturers deleted this feature to save costs and manufacturing time; it
8415-403: The tooth bar of the sprocket, which is mounted on a spindle parallel to the bore axis and rotates each round sequentially into the feeding position. Rotary magazines may be fixed or detachable, and are usually of low capacity, generally 5 to 10 rounds, depending on the caliber used. John Smith patented a rotary magazine in 1856. Another rotary magazine was produced by Sylvester Roper in 1866 and
8514-504: The top which can simplify the design of the pistol frame with regards to grip thickness. The FN P90 , Kel-Tec P50 , and AR-57 personal defense weapons use horizontally mounted feeding systems. The magazine sits parallel to the barrel, fitting flush with the top of the receiver, and the ammunition is rotated 90 degrees by a spiral feed ramp before being chambered. The Heckler & Koch G11 , an experimental assault rifle that implements caseless ammunition , also functions similarly with
8613-431: The trigger will fire the next round, where the cycle begins again. Most pump-action firearms do not have any positive indication that they are out of ammunition, so it is possible to complete a cycle and have an empty chamber. The risk of running out of ammunition unexpectedly can be minimized in a tubular magazine firearm by topping off the magazine by loading new rounds to replace the rounds that have just been fired. This
8712-450: The tubular magazine toward the user. In modern shotguns, the fore-end can be replaceable and often include picatinny rails or M-LOK for mounting accessories such as a tactical light , and the traditional straight grip might be replaced with a pistol grip for a more stable control. Modern pump shotgun designs, such as the Remington 870 and Mossberg 500 , have a safety feature called
8811-482: The user depresses the slide stop, throwing the slide forward, stripping a round from the top of the magazine stack and chambering it. In single-action pistols this action keeps the hammer cocked back as the new round is chambered, keeping the gun ready to begin firing again. During World War One, detachable box magazines found favor, being used in all manner of firearms, such as pistols, light-machine guns, submachine guns, semi-automatic and automatic rifles. However, after
8910-458: The vertical motion of the cartridges out of the magazine but allow one cartridge at a time to be pushed forward (stripped) out of the feed lips by the firearm's bolt into the chamber. Some form of spring and follower combination is almost always used to feed cartridges to the lips which can be located either in the magazine (most removable box magazines) or built into the firearm (fixed box magazines). There are also two distinct styles to feed lips. In
9009-534: Was also used in the weapons by Anton Spitalsky and the Savage Model 1892 . Otto Schönauer first patented a spool magazine in 1886 and his later design, patented in 1900, was used on bolt-action rifles produced at least until 1979, among them Mannlicher–Schönauer adopted by the Greek Army in 1903. The M1941 Johnson rifle also uses a rotary magazine. The design is still used in some modern firearms, most notably
9108-439: Was designed with a series of mechanical teeth activated by a cam track on the gas piston to pull cartridges off each clip and into the action. After the fifth and final round from each stripper clip was fed and fired, the empty clip would then fall out the bottom of the hopper magazine and the next fully loaded stripper clip would then be dropped into place for feeding. There is a spring-loaded follower that applied pressure on top of
9207-415: Was fed by a special eight-round en bloc clip. The clip itself was inserted into the rifle's magazine during loading, where it was locked in place. The rounds were fed directly from the clip, with a spring-loaded follower in the rifle pushing the rounds up into feeding position. When empty, the bolt would lock open, and a spring would automatically eject the empty clip with a distinctive pinging sound, leaving
9306-540: Was one of the first firearms to use self-contained metallic cartridges . The Henry was introduced in 1860 and was in production until 1866 in the United States by the New Haven Arms Company . It was adopted in small quantities by the Union Army in the American Civil War and was favored for its greater firepower than the standard issue carbine . Many later found their way Westward and was famed both for its use at
9405-445: Was one of the most successful repeating rimfire rifle made by Winchester . Approximately 849,000 Model 1890 rifles were produced between 1890 and 1932. Later pump-action rifles were also manufactured by Winchester, Marlin , Browning and Remington . A "reverse pump-action" design can sometimes be found, where the extraction is done by pushing the fore-end forwards, and re-chambered by pulling backwards. One such 21st-century variant
9504-599: Was originally a single-shot action that added a tubular magazine in its 1884 update. The Norwegian Jarmann M1884 was adopted in 1884 and also used a tubular magazine. The French Lebel Model 1886 rifle also used 8-round tubular magazine. Tubular magazines remain common on many makes and models of shotgun. The military cartridge was evolving as the magazine rifle evolved. Cartridges evolved from large-bore cartridges (.40 caliber/10 mm and larger) to smaller bores that fired lighter, higher-velocity bullets and incorporated new smokeless propellants . The Lebel Model 1886 rifle
9603-505: Was patented in 1908 by Arthur Savage for the Savage Model 99 (1899), although it was not implemented on the 99 until 1965. James Paris Lee’s patent of November 4, 1879, Number 221,328 would have been before Arthur Savage's magazine. Lee's magazine was also used on the Remington Lee model 1899 factory sporting rifle. Other guns did not adopt all of its features until his patent expired in 1942: It has shoulders to retain cartridges when it
9702-472: Was the first rifle and cartridge to be designed for use with smokeless powder and used an 8 mm wadcutter -shaped bullet that was drawn from a tubular magazine. This would later become a problem when the Lebel's ammunition was updated to use a more aerodynamic pointed bullet. Modifications had to be made to the centerfire case to prevent the spitzer point from igniting the primer of the next cartridge inline in
9801-402: Was the usual side arm for German Army personnel in both World Wars . The M1911 semi-automatic pistol set the standard for most modern handguns and likewise the mechanics of the handgun magazine. In most handguns the magazine follower engages a slide-stop to hold the slide back and keep the firearm out of battery when the magazine is empty and all rounds fired. Upon inserting a loaded magazine,
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