The GLOCK 20 in 10mm provides massive firepower. The use of the recoil-damping GLOCK hi-tech polymer considerably reduces recoil. With muzzle energy of 750 Joule and a magazine capacity of 15 rounds, it is the reliable companion on every hunt. It allows a safe and accurate finishing shot even when hunting big game. Available with 15 round magazine. Available with fixed sights made of polymer with white contrast insert for rapid aim. GLOCK compensator pistols are equipped with an integrated compensator, rendering the weapon even more controllable during rapid fire and allowing an improved hit pattern. The compensator consists of two longitudinal openings in the barrel and slide .