The Colt Official Police was the standard police service revolver for most of the mid-20th century, chambered in .38 Special and used by departments across America and allied militaries. Type: Revolver Action: DA/SA Caliber: .38 Spl Capacity: 6 Year introduced: 1927, USA Weight: 36 oz Overall length: 9.5" Status: Discontinued Military use: Yes Intended use: Law Enforcement, Military, Collector, Collecting, Military History