Description
If you've been looking for a .22 LR pistol that actually takes training seriously, the FN 502 Tactical is worth a hard look. FN built this from the ground up as a rimfire counterpart to the FN 509 series, and the result is a pistol that mirrors the 509's ergonomics, control layout, and general feel so closely that it works as a genuine subcaliber trainer. The grip texture, magazine release, slide stop, and manual safety all fall right where 509 users expect them, ambidextrous on both sides.
The Tactical version comes with a 4.6-inch steel barrel threaded 1/2×28 with a recessed target crown and thread protector, making it a natural fit for a rimfire suppressor. The slide is optics-ready through FN's Low-Profile Optics Mounting System, which uses included polymer adapter plates to support both Trijicon RMR and modified RMSc/K-series footprint optics. Suppressor-height fixed sights are already in place, so they co-witness cleanly once you mount a micro red dot. A Picatinny rail under the dust cover gives you room for a light or laser without any additional modification.
On the range, the 502 Tactical runs well across a broad spectrum of .22 LR ammo — an engineering challenge FN took seriously. The single-action hammer-fired trigger breaks cleanly at around 5 lbs with a short, positive reset, which is notably good for a rimfire pistol in this category. Accuracy at 25 yards is solid, with quality ammunition producing tight groups. The all-metal reciprocating slide gives this gun a more centerfire-like feel during shooting, which is part of what makes it so effective for building or maintaining practical skills at rimfire cost.
This FDE model (MPN 66-101009) ships with two 10-round magazines, a hard case, multiple optic mounting plates with hardware, and a standard-height front sight for those who prefer iron-sight-only setup. The FDE finish on both the polymer frame and slide give it a clean, coordinated look that's held up well for owners running it hard at the range.
Key Specifications
- Manufacturer: FN America (FN Herstal)
- Model: FN 502 Tactical
- MPN: 66-101009
- UPC: 845737013271
- Caliber: .22 LR
- Action: Single-Action Only (SAO), Semi-Auto
- Barrel Length: 4.6"
- Thread Pattern: 1/2×28 TPI
- Twist Rate: 1:16" RH
- Overall Length: 7.6"
- Height: 5.8"
- Width: 1.4"
- Weight: 23.7 oz
- Capacity: 10+1
- Sights: Suppressor-height fixed front and rear, optics-ready slide
- Frame: Polymer, Flat Dark Earth, Picatinny rail
- Slide: Optics-ready, serrated, Flat Dark Earth
- Safety: Ambidextrous manual thumb safety
- Color/Finish: Flat Dark Earth (FDE)
What’s Included
- FN 502 Tactical pistol
- Two 10-round magazines
- Hard carry case
- Optic adapter plates (Trijicon RMR and modified RMSc/K-series footprints) with mounting hardware
- Standard-height polymer front sight
- Thread protector
Frequently Asked Questions
Is the FN 502 Tactical a good trainer for someone who carries an FN 509?
It's one of the closest rimfire-to-centerfire trainer matches available. The ergonomics, control placement, and overall manual of arms mirror the 509 series tightly enough that repetitions on the 502 carry directly over. The grip circumference is slightly slimmer, but everything else — the magazine release, slide stop, and ambidextrous safety — is right where 509 users expect it. It will also fit most FN 509 Tactical holsters.
What red dot optics are compatible with the FN 502 Tactical?
The 502 ships with two polymer adapter plates that cover both the Trijicon RMR footprint and the modified RMSc/K-series footprint. That means popular options like the Holosun 507K, Shield RMSc, Vortex Venom, and Trijicon RMR all have a direct mounting path. The included suppressor-height sights co-witness cleanly once an optic is mounted. For those wanting a more robust plate, aftermarket aluminum options are also available.
Does the FN 502 Tactical come ready to run a suppressor?
Yes. The 4.6-inch barrel is threaded 1/2×28 with a recessed target crown and ships with a thread protector installed. The factory suppressor-height sights are already in place to give you a usable sight picture over most rimfire cans. Just about any standard .22 LR suppressor with a 1/2×28 mount will thread right on.
How reliable is the FN 502 Tactical with bulk .22 LR ammo?
FN stated reliability was the primary design goal, and for a blowback-operated rimfire it runs very well across a wide range of ammunition. Quality standard-velocity and high-velocity loads like CCI Mini-Mags cycle consistently. Like most semi-auto rimfires, it does best with quality ammo and benefits from regular cleaning given the inherently dirty nature of .22 LR propellant. Subsonic rounds may occasionally short-stroke, especially unsuppressed.
What is included with the FDE 10-round model (MPN 66-101009)?
This specific model ships with two 10-round magazines rather than the 10/15-round combo included with some other 502 Tactical configurations. It also includes a hard case, optic mounting plates for RMR and RMSc/K-series footprints with hardware, a standard-height front sight, and a thread protector on the barrel.
Is the FN 502 Tactical a good option for new shooters?
It works very well for newer shooters who want a full-featured, quality pistol without the recoil and cost of a centerfire round. The light recoil makes it easier to focus on fundamentals like trigger control and sight alignment, and the optics-ready platform means you can add a red dot to speed up the learning process. The ambidextrous controls and manual safety also make it accessible to left- and right-handed users alike.







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