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The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [ 1 ]
Download as PDF; Printable version; In other projects Wikidata item; ... Adcor A-556; AR Lower V5; AR-15–style pistol; Ares Shrike 5.56; ArmaLite AR-15; B. Barrett ...
.223 Remington 5.56x45mm NATO 6.8mm Remington SPC 7.62×39mm United States 1990s C42 W+F Bern: 6.45×48mm XPL Swiss Switzerland: no 1978 CAR-15: Colt's Manufacturing Company: 5.56×45mm NATO.223 Remington United States: yes 1966-present CAR 816: Caracal International: 5.56×45mm NATO United Arab Emirates: yes 2014-present Carbon 15
In the meantime, the Army would continue testing the AR-15, finding that the intermediate cartridge .223 (5.56 mm) rifle is much easier to shoot than the standard 7.62×51mm NATO M14 rifle. [ 43 ] [ 44 ] In 1961 marksmanship testing, the U.S. Army found that 43% of AR-15 shooters achieved Expert, while only 22% of M14 rifle shooters did so.
The LVOA-C is a direct gas-impingement (DGI) operated rifle based on the Colt AR-15. It features a proprietary full-length fore-end with an integrated muzzle brake/flash suppressor, which prevents the use of a suppressor due to size constraints. The rifle is used for close-quarters combat with low visibility operation applications (LVOA).
Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point.. This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name.
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 front sight is a post adjustable for elevation. The rear sight can be adjusted for windage. The sights can be adjusted with a bullet tip or pointed tool. The AR-15 can also mount a scope on the carrying handle.
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]