An AR-15–style rifle is a lightweight semi-automatic rifle based on or similar to the Colt AR-15 design. The Colt model removed the selective fire feature of its predecessor, the original ArmaLite AR-
Rifles styled like the AR-15 come in many sizes and have many options, depending on the manufacturer. The lower receiver, without the receiver extension, rear takedown pin, and buttstock, is shown at bottom.
1973 Colt AR-15 SP1 rifle with 'slab side' lower receiver (lacking raised boss around magazine release button) and original Colt 20-round box magazine
A stripped lower receiver, one that is lacking the additional parts included in a completed lower receiver, is the only part of an AR-15–style rifle that needs to be transferred through a federally licensed firearms dealer under United States federal law.
American Tactical OMNI AR-15–style rifle (lower in polymer), 5.56×45mm NATO caliber, with Millett DMS-1 scope and FAB Defense stock and grips
The ArmaLite AR-10 is a 7.62×51mm NATO battle rifle designed by Eugene Stoner in the late 1950s and manufactured by ArmaLite. When introduced in 1956, the AR-10 used an innovative combination of a str
AR-15–style rifle
…design. The Colt model removed the selective fire feature of its predecessor, the original ArmaLite AR-15, which is a scaled-down derivative of the AR-10 design (by Eugene Stoner). It is closely related to the military M16 rifle. ArmaLite sold the patent and trademarks for both to Colt's Manufacturing…
Close-up of ArmaLite AR-10 with Artillerie Inrichtingen (A.I.) markings
Close-up of flash Suppressor/compensator on early "Hollywood" model AR-10
AR-10 Sudanese model (top) over an AR-15 successor model (center)
Portuguese paratroopers with AR-10 flash hiders visible.