Ruger 43955 Mark IV 22/45 Lite 22 LR 10+1 4.40″ Stainless Threaded Barrel, Champagne Anodized Serrated Slide, Picatinny Rail, Black Anodized Polymer Frame, Black Checkered 1911-Style Grip

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. Comfortable, precision-molded polymer grip frame with a serrated front strap and checkered backstrap. Features a lightweight, ventilated, aerospace-grade aluminum receiver and a tensioned stainless steel barrel. 1/2″-28 threaded barrel with thread protector allows for the attachment of muzzle accessories. Cold hammer-forged barrel provides accuracy and longevity. Ergonomic bolt stop. Checkered, 1911-style grip panels. Internal cylindrical bolt construction ensures permanent sight-to-barrel alignment and higher accuracy than conventional moving-slide designs. Contoured ejection port and bolt ears allow for durable and reliable operation round after round. Accurate sighting system features an 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. Features a conveniently located push-button magazine release on the left side of the frame. Magazine disconnect prevents discharge when the magazine has been removed. Also includes: two, 10-round magazines.