The Ruger Old Army is a percussion cap-and-ball revolver based on the Remington 1858 pattern but built to modern standards. It uses adjustable sights, coil springs, and stainless steel options unavailable in the 19th century. Type: Revolver Action: Single-Action Caliber: .45 Black Powder Capacity: 6 Year introduced: 1972, USA Weight: 46 oz Overall length: 13.5" Status: Discontinued Intended use: Blackpowder Shooting and Collecting