Ruger-5.7 Semi-Auto Pistol deploys 5.7x28mm caliber ammunition. Features include 20-round magazine capacity, ambidextrous manual safety, Picatinny-style accessory rail, optics-ready slide, and high-performance glass-filled nylon grip frame. It has a barrel length of 4.94 ensuring accurate shooting. Light recoiling facilitates rapid target reacquisition.