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 Colt AR-15 is a product line of magazine-fed, gas-operated, autoloading rifles manufactured by Colt's Manufacturing Company in many configurations. The rifle is a derivative of its predecessor, th
AR-15–style rifle
…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-15, which is a scaled-down derivative of the…
Complete AR-15A2 rifle set with collapsible and fixed buttstocks, manual, 5.56 mm ammunition, and magazines
A Colt AR-15 on display at the National Firearms Museum. This example is fitted with an early waffle-patterned 20-round magazine.
AR-15A2 with the upper and lower receiver opened at the front hinge
The AR-15A2's most distinctive ergonomic feature is the carrying handle and rear sight assembly on top of the receiver.