Ruger, 57, Semi-automatic, Double Action, Full Size, 5.7X28MM, 4.94" Barrel, Glass Filled Nylon Frame, Black Finish, (2) 20 Round Mags, Ambidextrous Safety, Fiber Front & Adjustable Rear Sights Product Description The Ruger 57 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, 1911-style ambidextrous manual safety, robust slide release and reversible magazine release latch. The alloy steel barrel features a black nitride treatment for wear resistance. Specifications UPC 736676164011 Manufacturer Ruger Manufacturer Part # 16401 Model 57 Action Semi-automatic Type Double Action Size Full Size Caliber 5.7X28MM Barrel Length 4.9" Color Black Grips Textured Capacity 20Rd Accessories 2 Mags Safety Ambidextrous Sights Fiber Front & Adjustable Rear Sights Subcategory Pistols - Polymer Frame Material Polymer