FN 502 22 LR Gun Review :FN 509's Baby Brother!

Published on February 18, 2026
Duration: 25:36

This review of the FN 502 .22 LR pistol highlights its design similarities to the FN 509, making it an excellent training aid and a versatile option for plinking and new shooters. The video covers its features, ergonomics, optics readiness, and includes a detailed field stripping guide. While generally reliable, the reviewer notes potential ammunition sensitivity common in .22 LR firearms and recommends specific ammunition for optimal performance.

Quick Summary

The FN 502 is a .22 LR pistol designed as a training companion to the FN 509, sharing similar ergonomics and controls. It features an optics-ready slide, suppressor height sights, ambidextrous controls, and a comfortable grip. While generally reliable, .22 LR firearms can be sensitive to ammunition, and using quality rounds like CCI Mini-Mags is recommended for optimal performance.

Frequently Asked Questions

What is the FN 502 and how does it compare to the FN 509?

The FN 502 is a .22 LR rimfire pistol designed as a 'baby brother' to the FN 509. It shares many ergonomic features and controls with the 509, making it an excellent training tool. However, it operates as a single-action only handgun with a hammer, unlike the striker-fired 509.

What are the key features of the FN 502 pistol?

The FN 502 features an optics-ready slide with adapter plates for common red dot sights, suppressor height sights for co-witnessing, ambidextrous controls, aggressive yet comfortable texturing, and a 4-inch crowned steel barrel. It is available in .22 LR caliber.

What are the potential reliability issues with the FN 502?

Like many .22 LR firearms, the FN 502 can be sensitive to ammunition. Some users may experience initial reliability issues, particularly with trigger reset, which can often be resolved by using higher-quality ammunition like CCI Mini-Mags or by allowing the firearm to break in.

How do you field strip the FN 502 for cleaning?

To field strip the FN 502, first ensure it's unloaded. Lock the slide to the rear, lower the takedown lever, and release the slide. Then, remove the recoil spring assembly and the barrel from the slide. Reassembly is the reverse process.

What is the recommended dry-fire practice for the FN 502?

FN recommends using snap caps when dry-firing the FN 502 to protect the rimfire firing pin. Repeated dry-firing without protection can damage the firing pin, which is designed to strike the rim of a cartridge.

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