The Colt Single Action Army with 5.5-inch barrel, known as the Civilian or Sheriff barrel length. Balanced handling made this variant popular with lawmen and civilians alike throughout the frontier era. Type: Revolver Action: Single-Action Caliber: .45 Colt Capacity: 6 Year introduced: 1873, USA Weight: 37.5 oz Overall length: 10.75" Status: Discontinued Intended use: Cowboy Action Shooting