Around 480$ to 500$
A Model 21 in 45ACP can run from 100-550 USD
200-500 USD
No
300-400 USD
100-500
Glock Ges.m.b.H. was created on 2010-03-21.
100-400 USD
The glock 21 fires the .45 automatic colt pistol (.45acp, or .45 auto) round.
The Glock 21 does fire the .45 ACP, as does the Glock 30. You're probably thinking of the Glock 37, 38, and 39, which fire the .45 GAP cartridge - those cannot fire a .45 ACP.
Check your owner's manual or call Glock.
200-375 USD
For a basic Glock 21, new in box, between $600 - $650.