The latest generation of the legendary Standard, the Ruger Mark IV Target, further refines the rimfire pistol concept. The most important edition to the Mark IV design is the simple, one-button takedown, which provides for quick and easy field-stripping and proper chamber-to-muzzle cleaning. A recessed button in the back of the frame allows the upper receiver to tilt up and off of the grip frame without the use of tools. The smoothly contoured, comfortable grip features a natural pointing grip angle with replaceable, checkered grip panels for a non-slip hold. A contoured ejection port and easy-to-grasp bolt ears allow for durable and reliable operation round after round. Internal cylindrical bolt construction ensures permanent sight to barrel alignment and higher accuracy potential than conventional moving slide designs. The accurate sighting system features an adjustable rear sight and a drilled and tapped receiver for easy mounting of optics (rail not included). The ambidextrous manual safety positively locks the sear in the "SAFE" position when applied. The safety can be converted to left-side only with the included washer. Additional features include: a one-piece, precision CNC-machined grip frame, an ergonomic bolt stop, a conveniently located push-button magazine release, and a magazine disconnect device for added safety. The Target model has a 5.5" bull barrel with a 1 in 16" right-hand twist. Two 10-round magazines included.