Blowback operated, autoloading rimfire handgun with lightweight, alloy sleeved steel Vision barrel, Picatinny optics rail, suppressor-ready threaded barrel, muzzle brake, UFX overmolded grips, fiber-optic front sight, adjustable rear sight. Reliable and accurate, the Browning Buck Mark is at the apex of the autoloading rimfire handgun market. The hallmark of the Buck Mark design is the precision machined aluminum frame that serves as a solid foundation for performance. The single-action, blowback operated autoloading design is one of simplicity and reliability. The controls are easy to reach and use.