Please check the talk page for additional variants not shown on the main page. However, one must be thoroughly familiar with firearms laws before doing this as it is possible to make an illegal configuration without realizing it.įor help identifying AR-15 variants, see the Colt AR-15 Identification Guide. This is a very attractive feature for enthusiasts, who often purchase a number of upper receivers (often in different calibers) and interchange them with the same lower receiver. The upper receiver assembly is simply considered a part, and may be freely purchased and mail-ordered in most locations. The AR-15 consists of separate upper and lower receiver assemblies, which are attached with two through-pins and can be quickly interchanged with no tools. They are commonly fitted with several accessories such as bipods, folding or collapsing stocks, threaded barrels for the attachment of a flash suppressor, and a rail system for the attachment of vertical grips, flashlights, laser sights, telescopic sights, etc. AR-15 rifles are highly configurable and customizable.
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Standard AR-15 rifles accept detachable magazines of widely varying capacities, and have a pistol grip that protrudes beneath the stock. The name "AR-15" today is used almost exclusively to refer to the semi-automatic (commercially available) civilian version(s) of the M16 and M4 assault rifles, going from the name of a single rifle to the generic name of a type of rifles that trace their ancestry to it. The rifle would later be adopted by the United States military under the name "Rifle, Caliber 5.56 mm, M16". In 1959, ArmaLite sold the rights to the AR-10 and the AR-15 to Colt due to financial difficulties, and Colt continued development on the rifle. The original prototype AR-15 was developed by ArmaLite in 1956, and is a scaled down version of the ArmaLite AR-10 rifle, chambered in 5.56x45mm rather than 7.62x51mm.
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Maximum action looks like dusk series#
The M16 rifle series is the United States military designation of rifle variants of the ArmaLite AR-15 assault rifle adopted by the US military. ArmaLite AR-15, first pre-production model, seial number XAR1501 - 5.56x45mm