“Ruger 10157 22LR 5.5″” 10+1 Checkered Grip Carbon Fiber Finish Ruger Mark III Target with Carbon Fiber Finish Frame. Ruger Mark III pistols represent the evolution of Ruger 22 LR pistols, continuing the legacy created by the Ruger Standard, Mark I and Mark II pistols and yet incorporating many new engineering refinements. They are simple, rugged, and affordable, making them a great value for any sporting purpose – whether target shooting, plinking or small game hunting. Features include: rigid barrel/receiver connection; automatic bolt-hold-open latch; comfortable, rugged steel grip frame; contoured ejection port; easy-to-grasp tapered bolt ears; and rigidly mounted sights for consistent accuracy. Simply stated, Mark III Pistols offer the most versatility and value of any rimfire pistol on the market today. “