Glock 21C Gen 3 Complete Specs and Full Gun Specifications

To many Americans, there is only one caliber for a personal defense handgun and that's the .45 auto. Glock acknowledged that sentiment with the development of the Glock 21C (Compensated). To those who believe that personal defense starts with the numbers "4" and "5" (and in that order) the Glock Model 21C has been the answer to their prayers.