The FN Five-seveN Threaded Barrel variant adds a factory threaded barrel for suppressor attachment to the 5.7x28mm platform, making it the only factory-suppressor-ready option for the Five-seveN and appealing to suppressor users who want the cartridge's low-recoil characteristics. Type: Semi-Automatic Pistol Action: Striker-Fired Caliber: 5.7x28mm Capacity: 20 Year introduced: 2018, Belgium Weight: 21.2 oz Overall length: 8.2" Status: Active Intended use: sport, self_defense