Calibers: 9mm. Capacities: 10-, 17-, and 21-round magazine. Barrel: 4.25” (GT4) or 5 (GT5)”. Weight: 41.5 or 45.9 oz. Length: 7.6” or 8.5” overall. Grips: G10. Sights: XRAY3 Day/Night Front/Black Rear, optics-ready/RX footprint. Finish: Coyote or black. Features: SAO 1911-style flat trigger, steel frame with full dustcover, compatible with P320 magazines, beavertail grip safety with speed bump, extended thumb safety. Some variants come with factory-mounted optic.