Umarex Ruger MKIV, Single Shot Air Pistol, 177 BB, 5.3 Barrel, 360 Feet Per Second, Matte Finish, Black, Polymer Grips 2244245 Ruger's classic Mark Series pistols have been popular for well over 50 years. Finally, you can pass on the shooting tradition of Ruger's time-honored design to your family with the Ruger Mark IV .177 caliber pellet pistol. Umarex is paying homage to this cornerstone of Ruger design by applying the classic Ruger style to a smooth operating break barrel pellet pistol. Notably, this sweet plinker features adjustable fiber-optic sights, an automatic/manual thumb safety, and grips with combination smooth and checkered surfaces. Get stocked up with plenty of pellets and targets because you are going to need them with this fun plinker.