The Single-Six was Ruger's first revolver, introduced in 1953 as a single-action .22 LR patterned on the Colt SAA design but built with modern investment casting and coil springs. The 4.62-inch barrel is the compact cavalry-length configuration. The Single-Six established Ruger as a revolver manufacturer and funded the development of the larger-caliber Blackhawk. New Model Single-Sixes (post-1973) have the transfer bar safety. Type: Revolver Action: Single-Action Caliber: .22 LR Capacity: 6 Year introduced: 1953, USA Weight: 35 oz Overall length: 9.75" Status: Active Intended use: plinking, training, cowboy_action, small_game