Like no other pistol, GLOCK pistols permit almost unrestricted compatibility of the magazines within a caliber. Standard magazines, for instance, can also be used for backup weapons. The innovative polymer frame of the GLOCK pistol does not require grip shells. As a result, it hasconsiderably more space for the magazine body and enables double-row staggered cartridge configuration. For this reason, GLOCK pistols are superior in firepower to conventional pistol models of the same size.GLOCK magazines have a stiff metal tube encased in the proven GLOCK high-tech polymer. This resists deformation even when dropped from great height or exposed to extreme environment conditions.