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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. An AR-15–style rifle is a lightweight semi-automatic rifle based on or similar to the Colt AR-15 design.
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 .
In May 2008, Smith & Wesson introduced their first AR-15 style rifle in a new caliber, the model M&P15R, a standard AR platform rifle chambered for the Russian 5.45×39mm cartridge. [11] This was due to the availability cheap surplus Communist Bloc 5.45mm ammunition and AK-series weapons. [ 11 ]
Defense Distributed is an online, open-source hardware and software organization that develops digital schematics of firearms in CAD files, or "wiki weapons", that may be downloaded from the Internet and used in 3D printing or CNC milling applications. [2]
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.
In the past decade, firearms manufacturers have made about $1 billion from the sale of AR-15 style weapons. 4. Millions of AR-15 style rifles in the U.S. According to the National Shooting Sports ...
A binary trigger is a trigger for a semiautomatic firearm that drops the hammer both when the trigger is pulled, and also when it is released. Examples include the AR-15 series of rifles, produced by Franklin Armory, Fostech Outdoors, and Liberty Gun Works. The AR-15 trigger as produced by Liberty Gun Works only functions in pull and release ...
The forward assist is a button found on firearms with non-reciprocating (IE: not attached to the bolt/bolt carrier) cocking handles, commonly on AR-15 rifle derivatives, such as the M16 rifle, and is usually located on the receiver near the bolt closure. [1]