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AR-15–style rifles are now available in a wide range of configurations and calibers from a large number of manufacturers. These configurations range from standard full-sizes rifles with 20-inch (51 cm) barrels, to short carbine-length models with 16-inch (41 cm) barrels, adjustable length stocks and optical sights, to long range target models ...
The ArmaLite AR-15 was designed to be a lightweight rifle and to fire a new high-velocity, lightweight, small-caliber cartridge to allow infantrymen to carry more ammunition. [ 11 ] In 1959, ArmaLite sold its rights to the AR-15 to Colt due to financial difficulties and limitations in terms of manpower and production capacity. [ 1 ]
Other cartridges were derived from re-forming an existing case and possibly trimming the length in order to arrive at a case-shape that meets the standardized SAAMI-spec dimensions. AR-15 : 22 Nosler , Proprietary, uses the head and rim dimensions of the 5.56x45, and a case-body that is similar to the 6.8 SPC case.
Caliber Barrel length Barrel profile Barrel twist Bayonet Lug Muzzle device 601: ArmaLite AR-15: A1 Triangular S-1-F A1 No No .223 REM 20 in. A1 1:14 (early) 1:12 (late) Yes Type 1 Duckbill Type 2 Duckbill 602: ArmaLite AR-15: A1 Triangular S-1-F A1 No No .223 REM 20 in. A1 1:12 Yes Type 2 Duckbill
The Colt AR-15 is a product line of magazine-fed, gas-operated, autoloading rifle manufactured by Colt's Manufacturing Company ("Colt") in many configurations. [1] The rifle is a derivative of its predecessor, the lightweight ArmaLite AR-15, an automatic rifle designed by Eugene Stoner and other engineers at ArmaLite in 1956.
AR-30, AR-30A1, AR-31.308 Winchester, .300 Winchester Magnum, ... ArmaLite: Single-shot, .50 caliber bolt-action sniper and long-range target rifle. References
The AR-15 used .22-caliber bullets, which destabilized when they hit a human body, as opposed to the .30 round, which typically passed through in a straight line. The smaller caliber meant that it could be controlled in autofire due to the reduced bolt thrust and free recoil impulse. Being almost one-third the weight of the .30 meant that the ...
Furthermore, as late as the 1979 Sino-Vietnamese war most Chinese soldiers were armed with another weapon, the Type 56 carbine (an SKS copy), and were soon after re-equipped with the Type 81 assault rifle, followed later by the QBZ-95 and QBZ-03, all of which are unrelated to the Kalashnikov design.