The GLOCK 17 Gen4 in 9x19 introduces revolutionary design changes to the world's most popular pistol. The Modular Back Strap design lets you instantly customize its grip to adapt to an individual shooter's hand size. The surface of the frame employs the new scientifically designed real-world-tested Gen4 rough textured technology. Internally the new GLOCK dual recoil spring assembly substantially increases the life of the system. A reversible enlarged magazine catch changeable in seconds accommodates left or right-handed operators. The G17 Gen4 9x19mm pistol also retains the GLOCK accessory rail for your attachments. Also available in MOS configuration. - Caliber: 9x19 / Safe Action - Length: 202 mm / 7.95 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: 710 g / 25.06 oz. Loaded: 910 g / 32.12 oz. - Trigger Pull: 2.5 kg / 5.5 lbs. - Trigger Travel: 12.5 mm / 0.49 in. - Barrel Rifling: right hand hexagonal - Magazine Capacity: Standard: 17 Optional: 10/33