Ruger 43959 Mark IV 22/45 Lite 22 LR 10+1 4.40″ Black Stainless Steel Non-Threaded Barrel, Black Anodized Receiver w/Picatinny Rail, Black Polymer Frame, Black/Gray G10 Grip

The Mark IV 22/45 Lite 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; a lightweight, ventilated, aerospace-grade aluminum receiver and a tensioned stainless steel barrel; ergonomic bolt stop; adjustable rear sight and a factory-installed Picatinny rail for easy mounting of optics; ambidextrous manual safety can be converted to left-side only with included washer; push-button magazine release on the left side of the frame and magazine disconnect prevents discharge when the magazine has been removed. Includes two 10rd magazines and faux thread protector.