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The ArmaLite AR-15 [note 3] is a gas-operated assault rifle manufactured in the United States between 1959 and 1964. [10] Designed by American gun manufacturer ArmaLite in 1956, it was based on its AR-10 rifle.
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 ...
At closer ranges (typically inside 15–20 meters), the shooter must compensate by aiming high to place shots where desired. The standard AR-15 rifle has a 500 mm (19.69-inch) sight radius. [ 15 ] The AR-15 uses an L-type flip, aperture rear sight and it is adjustable with two settings, 0 to 300 meters and 300 to 400 meters. [ 16 ]
The standard XM-15 has a forged 7075T6 aircraft-grade aluminum upper and lower receiver.Barrels of XM-15 firearms have a heavy profile and are hard chrome-lined 4150 alloy steel or 416 stainless steel.
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.
Children are less likely to survive AR-15 wounds. The leading cause of death in children between the ages of 1 and 19 in the U.S. is gun violence, according to a recent New England Journal of ...
1,034,462 of the Model 760 alone were made from 1952-1980: Vetterli M1870: Bolt-action rifle Italy: 1,500,000 Remington Rolling Block: Single-shot rifle United States: 1,500,000 [121] Pattern 1853 Enfield: Rifle-musket United Kingdom: 1,500,000 [122] [page needed] MP 38 and MP 40: Submachine gun Nazi Germany: 1,100,000 [123] 1,500,000 [123 ...
They were used for several centuries by field and naval gunners of all countries until gradually replaced by computerised fire-control systems beginning in World War II (1939–1945). Range table for US 3-inch (76.2 mm) field gun, models 1902-1905