The Glock 21 is just a well-rounded .45. The only thing I would change is the frame, but Glock has already addressed that very issue. I don’t currently have a practical use for the G21 at the ...

Glock 21. Glock 21; Glock 21: New Age Design with an Old Caliber 45 Auto, also known as 45 ACP is a beefy cartridge developed in 1905 by John Moses Browning.