The FN Five-seveN pistol was developed in the early 1990s and features a cold hammer-forged barrel that is chrome-lined for extended service life. The polymer-framed FN Five-seveN offers single-action operation low felt recoil 20-round magazine capacity and is equipped with an ambidextrous forward-mounted manual safety and an accessory rail that accepts tactical lights and lasers. - Caliber: 5.7x28mm - Operation: Single-action - Mag Capacity: 10 or 20 Rd. - Weight: 21 oz. (without mag) - Barrel Length: 4.8