The Colt Official Police was Colt's primary medium-frame service revolver from 1927 through 1969, the direct successor to the Army Special and New Service for police use. Chambered in .38 Special, it competed directly with the S&W Military & Police (Model 10) for American law enforcement contracts and held its own for four decades. Issued to USAAF officers during WWII in .38 Special and to various military and police organizations worldwide. Type: Revolver Action: Double-Action Caliber: 38 Special Capacity: 6 Year introduced: 1927, USA Weight: 36 oz Overall length: 9.25" Status: Discontinued Military use: Yes Intended use: military, law_enforcement, collector