The .40 caliber introduced at the 1990 S.H.O.T. show closes the gap between the heavy .45 calibers and the internationally proven 9x19 service calibers. GLOCK was the first manufacturer to make the advantages of this balanced caliber accessible to law enforcement agencies. Today, countless police agencies in the U.S. and throughout the world put their trust in the GLOCK 22. Available with 15 rounds. 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 .