Colt's diminutive .25 ACP pocket pistol designed by John Browning, produced from 1908 to 1948. One of the most successful vest pocket pistols in American history, worn by gentlemen, officers, and detectives for four decades. Type: Pistol Action: Semi-Automatic Caliber: .25 ACP Capacity: 6 Year introduced: 1908, USA Weight: 13 oz Overall length: 4.5" Status: Discontinued Intended use: Concealed Carry, Collecting