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Initial sales of the Colt AR-15 were slow, primarily due to its fixed sights and carry handle that made scopes difficult to mount and awkward to use. [84] Military development of compact military AR-15 carbines encouraged production of a 16-inch (41 cm) barreled civilian SP1 carbine with a collapsible buttstock beginning in 1977.
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.
ArmaLite, or Armalite, is an American small arms engineering company, formed in the early 1950s, in Hollywood, California.Many of its products, as conceived by chief designer Eugene Stoner, relied on unique foam-filled fiberglass butt/stock furniture, and a composite barrel using a steel liner inside an aluminum sleeve, including the iconic AR-15/M16 family.
Weapons patterned on the original ArmaLite AR-15 design have been produced by numerous manufacturers and have been used by nations around the world, some of which created their own variations. The tables here are split into a variety of categories and provide an overview of different subtypes.
Stoner was born in Gosport, Indiana, on November 22, 1922.He moved to Long Beach, California where he graduated from Long Beach Polytechnical High School.In 1939, after the Depression, there was not enough money for him to attend college, so he went to work as a machinist for Vega Aircraft Company, the forerunner of what became Lockheed Airplane Company (now the Lockheed Martin Corporation).
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".
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The tests found that a five to seven man team armed with AR-15s had the same firepower as an 11-man team armed with M14s [40] and soldiers armed with AR-15s could also carry three times more ammunition than those armed with M14s (649 rounds vs. 220 rounds). [40] The AR-15 was found to be three times more reliable than the M14 rifle. [3]