The Ruger-57 is a full-size 5.7x28mm pistol competing directly with the FN Five-seveN at a lower price point. Features a fiber-optic front sight, Picatinny rail, and 20-round magazine capacity. Uses a delayed blowback operating system. Type: Pistol Action: Semi-Automatic Caliber: 5.7x28mm Capacity: 20 Year introduced: 2020, USA Weight: 24.5 oz Overall length: 8.65" Status: Active Intended use: Competition, Duty, Range