Calibers: 9mm. Capacity: 17-round (9mm) magazine. Barrel: 4.25" or 5". Grips: Four interchangeable palm-swell inserts. Sights: Fixed, tall 3-dot/C.O.R.E. optics-ready system. Length: 7.5"-8.5" overall. Weight: 23-27.2 oz. unloaded. Finish: Black Armornite. Features: Accessory rail, reversible magazine release and tuned action with audible trigger reset.