The Colt 1911A1 Lightweight Commander is a usa-made semi-automatic pistol chambered in .45 ACP, introduced in 1950. Primary use: self_defense, sport. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 8 Year introduced: 1950, USA Weight: 38 oz Overall length: 8.5" Status: Discontinued Intended use: self_defense, sport