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A STANAG magazine [1] [2] or NATO magazine is a type of detachable firearm magazine proposed by NATO in October 1980. [3] 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 the ...
The M4A1 carbine is a fully automatic variant of the basic M4 carbine. The M4A1 was developed in May 1991 and entered service in 1994; starting in 2014 the U.S. Army began upgrading all of its existing M4s to the M4A1 standard. [69] The M4A1 was the first M4 model with the removable carry handle.
The Close Quarter Battle Receiver (CQBR) [5] is a replacement upper receiver for the M4A1 carbine developed by the US Navy.. The CQBR features a 10.3 in (262 mm) length barrel (similar to the Colt Commando short-barreled M16 variants of the past) which makes the weapon significantly more compact, thus making it easier to use in, and around, vehicles and in tight, confined spaces.
A Beta C-Mag undergoes field testing on an M4 carbine. The Beta C-Mag is a 100-round capacity drum magazine manufactured by the Beta Company. It was designed by Jim Sullivan and first patented in 1987 and has been adapted for use in numerous firearms firing the 5.56×45mm NATO, 7.62×51mm NATO, and 9×19mm Parabellum cartridges. [1]
30-round box magazine or other STANAG Magazines. The Colt Model 933 is a compact carbine based on the AR-15 , M16 rifle and M4 Carbine produced by Colt starting in 1995. Due to its compact size, the short-barreled Colt 933 continues to be used by various US Special Forces and by some foreign forces, including Israeli Special Forces.
The Special Operations Peculiar MODification (SOPMOD) kit is an accessory system for the M4A1 carbine, CQBR, FN SCAR Mk 16/17, HK416 and other weapons used by United States Special Operations Command (USSOCOM) special forces units, though it is not specific to SOCOM.
As a result, drum magazines became more common in the civilian market in the United States, although they are far less common than standard, lower-capacity, typically 30 round, box magazines. [2] As of 2019, about six manufacturers produced drum magazine in the United States, retailing for about $100 each. [ 2 ]
The magazine is also inserted behind the trigger group [5] (technically it only needs the magazine's feeding slot to be located behind the trigger for the gun to be classified as a bullpup), but in some designs such as the Heckler & Koch G11, FN P90 and Neostead, the magazine can extend forward beyond the trigger.
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