The Colt Single Action Army (SAA) was the standard US Cavalry sidearm from 1873, seeing action in the Indian Wars and Spanish-American War. Known as the Peacemaker, it defined American firearms iconography and the myth of the American West. Type: Revolver Action: Single-Action Caliber: 45 Colt Capacity: 6 Year introduced: 1873, USA Weight: 37 oz Overall length: 11" Status: Active Military use: Yes Intended use: Military, Collector, Historical