Massachusetts Approved Firearms Roster: FN 503
The Massachusetts approved firearms rosters list 2 versions of the FN 503. 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 |
|---|---|---|---|
| FN 503 | 9mm | Semi-Automatic Pistol | Approved Handgun Roster |
| FN 503 + FLASHLT | 9mm | Semi-Automatic Pistol | Approved Handgun Roster |
Specifications of the FN 503
- Caliber
- 9mm
- Action
- Striker fired
- Weight
- 21 oz
- Barrel length
- 3.1 in
- Overall length
- 5.9 in
- Height
- 4.6 in
- Width
- 1.1 in
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 FN 503
The FN 503 is a slim striker-fired pistol chambered in 9mm with a 3.1 inch barrel.