FN 503, a new slim 9mm pistol for concealed carry

Another slim, ultra-compact carry pistol hits the market. FN introduces its smallest model, the FN 503, a 9mm polimer-framed, striker-fired autoloader purpose-built for concealed carry. Among its features a 3.1”/79 mm barrel with recessed target crown, enlarged controls and FN 509-style low-profile iron sight.

FN 503, a small sized gun

The FN 503 also sports a “skateboard tape-style” grip texture that provides all-day carry comfort. The all-metal trigger has a 5 to 7 lbs. trigger pull. A polished chamber and feed ramp ensure reliable feeding. The magazine with pinky extension holds 6 cartridges – actually, not a so impressive firepower, but an extended magazine with grip sleeve can add two rounds, for a total of eight cartridges. This is the price you have to pay for a gun whose width is just a smidge more than an inch (1.1”/28 mm, the slide itself is just 0.9”/23 mm wide), for a length of 5.9”/147 mm and a height of 4.6”/116 mm.

The FN 503 utilizes same dovetail as FN 509 series of pistols and is equipped with a loaded chamber indicator. For a price of 549 USD (MSRP), the FN 503 comes with two magazines (6-round and 8-round extended magazine).

FN 503 slim 9mm pistol right side view
Designed for concealed carry, the FN 503 sports a 3.1”/79 mm barrel.
FN 503 slim 9mm pistol left side view
Capacity is 6 rounds with standard magazine and 8 rounds with extended magazine.

The FN 503 in video

FN 503 specs and price

Striker fired
Magazine capacity:
(1) 6-round with pinky extension; (1) 8-round with grip sleeve
5.9”/147 mm
4.6”/116 mm
21 oz/595 g
1.1”/28 mm
Barrel Length:
3.1”/79 mm (twist rate: 1:10 RH)
Low-profile, snag-free, three-dot iron sights with FN 509 doveta
Trigger pull weight:
5-7 lb (2268-3175 g
549 USD
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