The FN Five-seveN MK2 is the updated version of the original Five-seveN, featuring Picatinny accessory rails on the frame, interchangeable rear sights, and other ergonomic improvements. It is the current production version sold worldwide. Type: Pistol Action: Semi-Automatic Caliber: 5.7x28mm Capacity: 20 Year introduced: 2013, Belgium Weight: 21.2 oz Overall length: 8.2" Status: Active Intended use: law_enforcement, civilian, military