FN 503

Parts listed here are designed for the FN 503 subcompact pistol model chambered in 9mm unless noted otherwise. MGW offers replacement magazines, sight tools, parts kits and more for this handgun model. Outfit your FN 503 with quality OEM and aftermarket parts and components to ensure reliable function with every round fed.

Processing...
FN 503 9mm Magazine, 8 Round Black

FN 503 9mm Magazine, 8 Round Black

$43.99

6
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

FN 503 9mm Magazine, 6 Round Black

FN 503 9mm Magazine, 6 Round Black

$43.99

Not Yet Rated

In Stock

Apex Tactical FN 509, 503, & FNS Striker Components Kit

Apex Tactical FN 509, 503, & FNS Striker Components Kit

$14.25

2
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

FN 503 Magazine, 9mm, 8 Round FDE

FN 503 Magazine, 9mm, 8 Round FDE

$43.99

Not Yet Rated

In Stock

FN 503 Magazine, 9mm, 6 Round FDE

FN 503 Magazine, 9mm, 6 Round FDE

$43.99

Not Yet Rated

In Stock

MGW Armory Sight-Pro & Range Master Tool Shoe Plate for FN 503

MGW Armory Sight-Pro & Range Master Tool Shoe Plate for FN 503

$14.99

Not Yet Rated

In Stock