M1911

The M1911 is a sidearm featured in ArmA 2 and Operation Arrowhead. The following is a extract from wikipedia:The M1911 is a single-action, semi-automatic, magazine-fed, recoil-operated handgun chambered for the .45 ACP cartridge, [1] which served as the standard-issue side arm for the United States armed forces from 1911 to 1985. It was widely used in World War I, World War II, the Korean War, and the Vietnam War. The M1911 is still carried by some U.S. forces.