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The ArmaLite AR-10 is a 7.62×51mm NATO battle rifle designed by Eugene Stoner in the late 1950s and manufactured by ArmaLite (then a division of the Fairchild Aircraft Corporation).
A disassembled Mauser action showing a partially disassembled receiver and bolt. In firearms terminology and at law, the firearm frame or receiver is the part of a firearm which integrates other components by providing housing for internal action components such as the hammer, bolt or breechblock, firing pin and extractor, and has threaded interfaces for externally attaching ("receiving ...
ArmaLite AR-10. In 1955, Stoner completed initial design work on the revolutionary ArmaLite AR-10, a lightweight (3.29 kg (7.25 lb)) select-fire infantry rifle in 7.62×51mm NATO caliber. Besides featuring the Stoner bolt and carrier piston system, the AR-10 stock was in line with the bore to reduce muzzle rise, especially during automatic fire.
The AR-10 is slightly larger and heavier than the AR-15. It was originally designed to chamber the military 7.62x51 NATO cartridge (also .308), which has a COAL of 2.800" (71.12mm) 45 Raptor , uses the standard 7.62 NATO case, cut to a length of 1.800" from 2.015", resulting in a straight-wall cartridge, neck is sized to 0.452".
[19] [16] Due to financial problems and limitations in terms of manpower and production capacity, ArmaLite sold the AR-15 and AR-10 designs and trademarks to Colt in 1959. [20] 1973 Colt AR-15 SP1 rifle with 'slab side' lower receiver (lacking raised boss around magazine release button) and original Colt 20-round box magazine
The Mk47 Mutant has an AR-10-sized bolt carrier, [8] which was enlarged, with a CMMG RKM KeyMod handguard [3] [5] and an upper/lower receiver manufactured from 7075-T6 billet aluminum. [2] The rifle has an AR-15-based pistol grip, safety selector, trigger group and a buffer tube. [2] It was influenced by the CMMG Mk3 assault rifles. [9]