FN 503

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Categories: , Tags: , Product ID: 1841


The FN 503, inspired by FN’s legendary heritage, is the company’s first entry into the slim 9mm pistol market. The FN 503, roughly the size of your hand, conceals quickly and discreetly without compromising on features or performance.  The excellent trigger and soft recoil of this slim 9mm pistol make the FN 503 comfortable and controllable to shoot.

Arguably the best in its class, the all-metal trigger breaks crisply and consistently with an average of 5lb. trigger pull. The snag-free sights ensure a quick draw from any holster or bag. And, the enlarged controls make operation effortless when switching between the 6-round standard magazine and 8-round extended magazine.


  • Caliber: 9mm
  • Operation: Striker fired
  • Mag Capacity: 6 or 8 Rd.
  • Weight: 21 oz.
  • Barrel Length: 3.1″
  • Overall Length: 5.9″
  • Twist Rate: 1:10 RH
  • Height: 4.6″
  • Width: 1.1″
  • Trigger Pull: 5 – 7 lb.
  • Sight Radius: 5.1

Primary Features

Striker-fired autoloader

Crisp, easy to shoot metal trigger

5 to 7 lbs. trigger pull

Slim 9mm with 8+1 rd capacity


Low-profile iron sights to prevent snags

Utilizes same dovetail as FN 509 series of pistols

Loaded chamber indicator

Rear cocking serrations for easy
manipulation of slide


Recessed target crown

Polished chamber and feed ramp


Slim frame for easy concealment

Advanced texture for secure and
comfortable grip


Oversized controls for easy operation


Comes with 6-round and 8-round extended magazine


Owner’s manual

Locking device

FN logo soft pistol case