Massachusetts Approved Firearms Roster: Glock 21
The Massachusetts approved firearms rosters list 3 versions of the Glock 21. Each line below is shown as the roster prints it.
Checked against the current official editions: Approved Handgun Roster, October 2026, Formal Target Shooting Firearms Roster, April 2026, Olympic Competition Firearms Roster, May 2018
| Version as listed | Caliber | Action | Roster |
|---|---|---|---|
| 21 Gen4 | .45 ACP | Semi-Automatic Pistol | Approved Handgun Roster |
| 21C | .45 ACP | Semi-Automatic Pistol | Approved Handgun Roster |
| 21SF | .45 ACP | Semi-Automatic Pistol | Approved Handgun Roster |
Specifications of the Glock 21 Gen4
- Caliber
- .45 Auto
- Capacity
- 13
- Barrel length
- 4.61 in
- Overall length
- 8.07 in
- Height with magazine
- 5.51 in
- Width
- 1.34 in
- Weight with empty magazine
- 29.28 oz
- Safety system
- Safe Action System
From the maker's page listed under Sources, checked October 28, 2026. Versions on the roster can differ in barrel length, sights and finish.
About the Glock 21
The Glock 21 Gen4 is a pistol chambered in .45 Auto with a standard 13-round magazine.