Big Boy with brass receiver and 20-inch octagon barrel chambered in .45 Colt, the original revolver cartridge of the American West. Pairs naturally with Single Action Army revolvers. Type: Rifle Action: Lever-Action Caliber: .45 Colt Capacity: 10 Year introduced: 2004, USA Weight: 84 oz Overall length: 38.5" Status: Active Intended use: Cowboy Action / Collecting