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What is an AR-15 rifle, and why is it so popular. A similar firearm was used by the Jacksonville, Florida shooter at a Dollar General, officials said.
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 “AR” in AR-15 rifle stands for ArmaLite Rifle, after the company that developed it in 1957. The letters do not stand for “assault rifle” or “automatic rifle.” In 1959, Colt ...
Assault rifles are full-length, select fire rifles that are chambered for an intermediate-power rifle cartridge that use a detachable magazine. Assault rifles are currently the standard service rifles in most modern militaries. Some rifles listed below, such as the AR-15, also come in semi-auto models that would not belong under the term ...
[8] [59] [68] In January 1963, Secretary of Defense Robert McNamara concluded that the AR-15 was the superior weapon system and ordered a halt to M14 production. [59] [68] [71] At the time, the AR-15 was the only rifle available that could fulfill the requirement of a universal infantry weapon for issue to all services.
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 ]
ArmaLite AR-15 with the charging handle located on top of the upper receiver, protected within the carrying handle and a 25-round magazine. 1973 Colt AR-15 SP1 rifle with "slab side" lower receiver (lacking raised boss around magazine release button) and original Colt 20-round magazine.
Originally intended for military use, AR-15-style rifles have surged in popularity over the last two decades Roughly 1 in 20 Americans own an AR-15 rifle as firearm’s popularity explodes despite ...