Browning Buck Mark Field Target Micro .22 LR 10+1 4" Matte Blued Bull Barrel, Matte Black Serrated w/Picatinny Rail Slide, Matte Black Aluminum Frame, UFX Overmolded Grip The Browning Buck Mark single-action, blowback operated autoloading design is one of simplicity and reliability. The controls are easy to reach and use. Features a lightweight aluminum frame; recessed muzzle crown barrel; top Picatinny rail; UFX grips feature overmolded rubber panels. The Pro-Target rear sight features 16-clicks per revolution, a fiber-optic sight comes standard. Includes two magazines and pistol rug.