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Any AR-15/AR-10 cartridge cases that are derived from the 7.62x51 can also be formed from these listed calibers. (7.62x51 & .308 are similar in external dimensions though the Brass has different internal capacity and Max PSI recommendations are different & Chambers are different.) AR-10 :The AR-10 is slightly larger and heavier than the AR-15 ...
The AR-15 is nominally chambered in .223 Remington or 5.56×45mm NATO, with the .223 Wylde chamber allowing for the safe chambering of both, but many variants have been produced in different calibers such as .22 LR (sometimes referred to as an AR-22 [59]), 7.62×39mm, 9×19mm Parabellum, [60] 6.5mm Grendel, and shotgun calibers. [61]
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 ]
ArmaLite AR-15 with the charging handle located on top of the upper receiver, protected within the carrying handle and a 25-round magazine. 1973 Colt AR-15 SP1 rifle with "slab side" lower receiver (lacking raised boss around magazine release button) and original Colt 20-round magazine.
The “AR” in AR-15 rifle stands for ArmaLite Rifle, after the company that developed it in 1957. The letters do not stand for “assault rifle” or “automatic rifle.” In 1959, Colt ...
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.
The 6.5mm Grendel is an intermediate cartridge jointly designed by British-American armorer Bill Alexander, competitive shooter Arne Brennan (of Houston, Texas) and Lapua ballistician Janne Pohjoispää, as a low-recoil, high-precision rifle cartridge specifically for the AR-15 platform at medium/long range (200–800 yard).
An AR-15 or similar rifles are semiautomatic, military-style weapons that can fire at least 30 rounds, the number of bullets a magazine typically carries, according to NPR. The term semiautomatic ...