Browning Buck Mark URX Single Shot Break Barrel .177 Caliber Pellet Gun Air Pistol - TOPHATTER'S ARMORY DEALSThe Browning Buck Mark URX is a lightweight, comfortable air pistol that lives up to the Browning name. This spring piston break barrel air pistol features a single stroke cocking mechanism for easy loading. With an accessory rail for mounting an optic, the Buck Mark URX fires . 177 caliber pellets and is perfect for campers, hunters, and target shooters. Features: Break Barrel Action Ambidextrous grip with finger grooves One Stroke Cocking Mechanism