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The first version produced for commercial sale by Colt was the SP1 model AR-15 Sporter in .223 Remington, with a 20-inch (51 cm) barrel and issued with five-round magazines. [21] 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]
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.
AR15.com is a firearm-enthusiast web forum [2] founded as a mail list in 1996 and headquartered in the Dallas/Fort Worth area. It migrated to a bulletin board system, then finally a website which the owner called "the largest firearms website in the world", [3] [4] with 10 million users in 2013. [1]
The Armalite AR-15 is the parent of a variety of Colt AR-15 and M16 rifle variants. History After World War II, the United States military started looking for a single automatic rifle to replace the M1 Garand , M1/M2 Carbines , M1918 Browning Automatic Rifle , M3 "Grease Gun" and Thompson submachine gun .
The ArmaLite AR-18 is a gas-operated rifle chambered for 5.56×45mm NATO ammunition.The AR-18 was designed at ArmaLite in California by Arthur Miller, Eugene Stoner, George Sullivan, and Charles Dorchester in 1963 as an alternative to the Colt AR-15 design, a variant of which had just been selected by the U.S. military as the M16.
A smaller version of the AR-10 and adopted by the United States military as the M16 rifle. Later developed by Colt into a popular semi-automatic Colt AR-15. AR-16: 7.62×51mm NATO: ArmaLite: Prototype battle rifle. ArmaLite AR-17: 12 gauge: Semiautomatic 12ga 2shot shotgun based on the earlier AR-9. AR-18: 5.56×45mm NATO
ArmaLite AR-18: ArmaLite: 5.56×45mm NATO United States: yes 1969-1985 ArmaLite AR-100: ArmaLite: 5.56×45mm NATO United States: Armtech C30R: Armtech Ltd: 5.56×45mm NATO (Quadrant with 3.56g standard M193 bullet, dimensions of the rectangular ammunition 35.7×15.8×9.5 mm) Australia: 1986 AS-44: 7.62×39mm Soviet Union: no 1944 AS Val ...
ArmaLite AR-15; B. Barrett REC7; Bushmaster XM-15; C. CAR 816; Carbon 15; CMMG Mk47 Mutant; Colt AR-15; Colt Canada C7 and C8; Comparison of the AK-47 and M16; H ...