SF = "Short Frame"
The short frame was originally designed to compete in the U.S. military Joint Combat Pistol trials for a new .45 ACP pistol to replace the M9 pistol.
This was achieved by a reduction in trigger reach and a reduction in heel depth.
THE GALCO S.O.B. AND THE FOBUS LEATHER PANCAKE MADE FOR THE GLOCK MODEL 21 WILL ALSO FIT THE 21SF
For a basic Glock 21, new in box, between $600 - $650.
No
Glock Ges.m.b.H. was created on 2010-03-21.
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.
A Glock 21 magazine holds 13 rounds, a Glock 30 magazine holds ten rounds, and a Glock 36 magazine holds six rounds.
50m
@ 125mm
There are several models of Glock pistol in .45 calibre. The .45 ACP models include the Glock 21, Glock 30, and Glock 36. The .45 GAP models include the Glock 37, Glock 38, and Glock 39. Factory standard magazine capacities are as follows:Glock 21: 13 roundsGlock 30: 10 roundsGlock 36: 6 roundsGlock 37: 10 roundsGlock 38: 8 roundsGlock 39: 6 rounds
What does your owner's manual say? Don't have one? Call Glock and they will send you one.