The primary Union revolver of the Civil War. Colt's .44 caliber cap-and-ball Army revolver with round barrel and creeping-style loading lever. Type: Revolver Action: Single-Action Caliber: .44 Percussion Capacity: 6 Year introduced: 1860, USA Weight: 44 oz Overall length: 13.75" Status: Discontinued Military use: Yes Intended use: Collector, Civil War Reenactment