The Ruger Mark IV 22/45 Competition .22 LR combines the 1911-angle 22/45 grip with a 6.88-inch slab-sided competition barrel. Adjustable target sights and the Mark IV's push-button takedown make it a complete competition rimfire package for bullseye and precision pistol. Type: Semi-Auto Pistol Action: SA Caliber: .22 LR Capacity: 10 Year introduced: 2017, USA Weight: 44 oz Overall length: 11" Status: Active Intended use: Competition, Bullseye, Target