The Ruger Mark IV 22/45 shares its grip angle and magazine release location with the 1911 for seamless transition training. Push-button takedown for tool-free disassembly. Type: Pistol Action: Blowback Caliber: .22 LR Capacity: 10 Year introduced: 2016, USA Weight: 36 oz Overall length: 9.5" Status: Active Intended use: Training, Plinking, Competition