Pistol - .45 ACP - USA - Semi-Automatic -  Retired from service 10 years ago in favor of the M9, some soldiers still use it today. The Colt .45 was designated the M1911A by the Marine Corps and fires a minimum of eight .45 automatic Colt pistol rounds, but can also be equipped with an extended magazine. It is a single action pistol, which means you will manually have to pull back the hammer for the first shot, but will then have semi-automatic fire until your clip runs out. This is a superior weapon and was retired only because NATO allies favored the 9mm parabellum round.