Ruger 5.7 Pro, Double Action Only, Semi-automatic, Polymer Frame Pistol Full Size, 5.7X28MM, 4.94 Black Nitride Barrel, Black Oxide Finish, High-Performance Glass-Filled Nylon Grip, Fiber Optic Front Sight, Adjustable Rear Sight, Integrated Trigger Safety, 20 Rounds, 2 Magazines 16403 The Ruger 5.7 Pro utilizes Ruger's safe, reliable, and proven Secure Action fire-control system that combines a protected internal hammer with a bladed-safety trigger. The trigger has a short, smooth pull, clean break, and positive reset. Impressive ergonomics include an easy trigger reach, high-performance glass-filled nylon grip, robust slide release, and reversible magazine release latch. The alloy steel barrel features a black nitride treatment for wear resistance.