The Colt 1908 Vest Pocket is a usa-made semi-automatic pistol chambered in .25 ACP, introduced in 1908. Primary use: self_defense, sport. Type: Pistol Action: Semi-Automatic Caliber: .25 ACP Capacity: 7 Year introduced: 1908, USA Weight: 13 oz Overall length: 4.5" Status: Discontinued Intended use: self_defense, sport