FN 502
The FN 502 is FN America’s .22 LR training pistol designed to mirror the ergonomics and controls of the FN 509 centerfire pistol — same grip angle, same manual of arms, same control placement. The base FN 502 ships with a standard (non-threaded) barrel and no optic cut, providing the core training-pistol experience at a lower price than the FN 502 Tactical. For FN 509 owners, every round of .22 LR through the 502 reinforces the same draw stroke, grip, and muscle memory as their carry or duty gun at a fraction of the ammunition cost.
Read our full FN 502 Buying Guide ↓
FN 509 Ergonomic Match
The 502 mirrors the FN 509’s grip angle, trigger reach, safety location, slide release position, and magazine release placement. The result is a .22 LR pistol that feels like your 509 in your hand — training fundamentals (draw, presentation, trigger press, reloads) transfer directly between the two guns. This is the 502’s core value proposition: platform-consistent training at .22 LR cost.
FN 502 vs. FN 502 Tactical
The base 502 has a standard barrel (non-threaded) and no optic cut on the slide. The FN 502 Tactical adds a 4.6-inch threaded barrel (1/2x28 for suppressor mounting) and an optics-ready slide with adapter plates for micro red dots. If you plan to suppress the gun or mount a red dot, the Tactical is worth the step up. If you want the training-pistol experience without those features, the base 502 saves money.
15-Round Magazine
Both 502 variants use the same 15-round .22 LR magazine — higher capacity than most .22 pistols and enough for meaningful drill sets without constant reloading. The magazine is proprietary to the 502 and not interchangeable with the FN 509’s 9mm magazines.
FN 502 vs. Other .22 LR Training Pistols
The Taurus TX22 is the most popular .22 LR pistol overall at a lower price but doesn’t mirror any specific centerfire platform. The GSG 1911-22 mirrors 1911 controls. The 502 is specifically for FN 509 owners. If you don’t shoot a 509, the TX22 or a platform-specific trainer may be a better match.
Frequently Asked Questions
Does the FN 502 feel like the FN 509?
Yes — same grip angle, trigger reach, and control positions. Designed as the 509’s .22 LR training companion.
FN 502 or FN 502 Tactical?
Tactical if you want a threaded barrel for a suppressor or an optics-ready slide. Base 502 if you just want the training pistol.
Does the FN 502 use FN 509 magazines?
No — the 502 uses its own 15-round .22 LR magazine.
Is the FN 502 reliable?
Most reviewers report good reliability with standard and high-velocity .22 LR (CCI Mini-Mag, Federal AutoMatch). Like all .22 semi-autos, ammo selection matters.
See Also: FN 502 Tactical • FN America • FN 509 • .22 Pistols • .22 LR Ammo