The Ruger Mark IV 22/45 Lite Rimfire Pistol features a simple, one-button takedown for quick and easy field-stripping and proper chamber-to-muzzle cleaning. Pressing a button in the back of the frame allows the barrel-receiver assembly to tilt up and off the grip frame without the use of tools. Cold hammer-forged barrel results in ultra-precise rifling that provides exceptional accuracy and longevity.