FN 503 9mm Micro Striker-Fired Pistol, FDE, 3.1 in Barrel, 7+1 Capacity, Two Magazines, Box & Pouch
This FN America FN 503 is a micro 9mm Luger pistol finished in flat dark earth with matching slide and frame. It features a 3.1 inch barrel, a slim single-stack profile, and fixed 3-dot sights. Compact dimensions, two factory magazines, and its FDE configuration make this example a standout for buyers who value a small footprint with proven FN build quality.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol is in great shape. Minor, superficial scratches and blemishes are present.
What’s Included
- FN factory cardboard box
- FN-branded zippered soft pistol pouch
- FN 503 owner's manual
- One 7-round FN 503 factory steel magazine (extended with grip sleeve)
- One 6-round FN 503 factory steel magazine (with finger-extension baseplate)
The FN 503 is a micro, single-stack 9mm designed for a slim profile and easy carry. This FDE model pairs a 3.1 inch steel barrel with a 5.9 inch overall length, 1.1 inch width, and an unloaded weight of 21 oz, delivering a compact footprint without sacrificing shootability.
It is a striker-fired design with a trigger safety and a visual loaded-chamber witness cut in the barrel hood. The trigger is all-metal with a blade safety, and the listed trigger weight is 5.0. A recessed crown protects the muzzle, and rear slide serrations aid manipulation.
Sighting is straightforward and durable: fixed 3-dot sights with a dovetailed, drift-adjustable rear and a fixed front dot. The FN 503 shares the FN 509 sight dovetail specification, and the frame carries aggressive grip texturing for consistent control.
This FDE colorway was introduced in 2021, and the FN 503 was discontinued in FN’s U.S. catalog by 2023. This example includes both a 6-round magazine with a finger-extension baseplate and a 7-round extended magazine with grip sleeve for a total capacity of 7+1. Made in the USA.