The high-performance GLOCK 31 is characterized by extremely high muzzle velocity and superior accuracy even at extended shooting distances. This .357 pistol is the optimum solution for those looking for these attributes in a reliable yet lightweight pistol with large magazine capacity. Many law enforcement agencies have already selected the G31 as their official service pistol. - Length: 204 mm / 8.03 in. - Width: 30.00 mm / 1.18 in. - Length Between Sights: 165 mm / 6.49 in. - Height: 138 mm / 5.43 in. - Barrel Height: 32 mm / 1.26 in. - Barrel Length: 114 mm / 4.48 in. - Weights: Unloaded: 740 g / 26.12 oz.-Loaded: 940 g / 33.18 oz. - Trigger Pull: ~2.5 kg / ~5.5 lbs. - Trigger Travel: ~12.5 mm / ~0.49 in. - Barrel Rifling: right hand hexagonal - Length of Twist: 250 mm / 9.84 in. - Magazine Capacity: Standard: 15 Optional: 10