The original M1911 as produced by Colt and government arsenals for WWI and interwar service. Pre-dates the A1 improvements of 1926 including the arched mainspring housing and revised grip safety. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 7 Year introduced: 1911, USA Weight: 280 oz Overall length: 8.5" Status: Discontinued Military use: Yes Intended use: Service, Military