Description
FN built the 502 Tactical from the ground up as a rimfire that doesn't feel like a compromise. The frame takes clear inspiration from the FN 509, right down to the grip texture, balance, and overall profile – so if you're already running a 509 Tactical for carry or duty, the transition between the two is nearly seamless. The single-action hammer-fired trigger breaks at around 5 lbs with a clean, consistent feel, and the anodized aluminum slide features front and rear cocking serrations that give you a solid purchase no matter how you prefer to work the gun.
What Makes the FN 502 Tactical Stand Out
The slide is milled from the factory to accept multiple red dot footprints through three included polymer adapter plates, covering popular options like the Trijicon RMR, Vortex Venom, and Shield RMS. The suppressor-height fixed sights co-witness with mounted optics and stay usable when a can is on the muzzle. That 4.6" steel barrel is threaded 1/2×28 – the most common thread pitch for rimfire suppressors – and comes with a knurled thread protector to protect the target-crowned muzzle when you're running it bare. A three-slot Picatinny rail on the dust cover lets you hang a light or laser if you want to run it fully kitted out.
FN 502 Tactical as a Training Tool
The real value proposition here is what rimfire training does for your skillset and your wallet. Running the same grip, the same manual of arms, and the same optic footprint as your full-size FN saves real money at the range without sacrificing the practice reps that actually matter. The 502 Tactical ships with both a 15-round and a 10-round magazine, so you can match capacity to your training scenario. Fully ambidextrous controls – slide stop, magazine release, and manual safety – mean left-handed shooters get the same experience as right-handers. The FDE finish pairs a tan polymer frame with a burnt bronze anodized slide for a sharp, purpose-built look that fits right in with modern tactical setups.
Key Specifications
- Manufacturer: FN America / FN Herstal
- MPN: 66-101006
- UPC: 845737013332
- Caliber: .22 LR
- Action: Single-Action Only (SAO), Hammer-Fired
- Barrel Length: 4.6"
- Thread Pattern: 1/2×28
- Twist Rate: 1:16" Right-Hand
- Overall Length: 7.6"
- Height: 5.8"
- Width: 1.4"
- Weight (Unloaded): 23.7 oz.
- Capacity: 15+1
- Sight Radius: 5.5"
- Sights: Suppressor-Height Fixed, Optics Co-Witness
- Slide: Anodized Aluminum and Steel, Optics-Ready
- Safety: Ambidextrous Manual Safety
- Trigger Pull: Approx. 5 lbs.
- Finish: Flat Dark Earth (FDE)
- Rail: 3-Slot Picatinny on Dust Cover
What’s Included
- FN 502 Tactical pistol
- 1x 15-round magazine
- 1x 10-round magazine
- 3x MRD adapter plates (Trijicon RMR, Vortex Venom, Shield RMS footprints)
- Standard-height polymer front sight
- Knurled metal thread protector
- Owner's manual
Frequently Asked Questions
Will the FN 502 Tactical fit in my FN 509 holster?
In many cases, yes. The 502 Tactical was designed to closely mirror the 509's dimensions and profile, and it is compatible with most FN 509 Tactical holsters. That said, holster fit can vary by brand and model, so it's worth confirming with your specific holster maker before assuming a perfect match.
What red dot optics are compatible with the FN 502 Tactical?
The 502 Tactical ships with three polymer adapter plates that cover the Trijicon RMR, Vortex Venom, and Shield RMS footprints. FN's Low-Profile Optics Mounting System is designed so the included plates allow co-witnessing with the suppressor-height iron sights. Popular options like the Holosun 407K and similar micro red dots with those footprints work well on this platform.
Is the FN 502 Tactical reliable with bulk .22 LR ammo?
The 502 Tactical is generally regarded as one of the more reliable .22 LR pistols on the market, and real-world testing has put several hundred rounds through it without issues. That said, .22 LR rimfire ammo can be inconsistent across brands, and like most rimfire pistols, the 502 performs best with quality ammunition. Higher-velocity loads tend to cycle more reliably than standard or subsonic rounds when running it unsuppressed.
Does the FN 502 Tactical come suppressor-ready out of the box?
Yes. The 4.6" barrel is threaded 1/2×28, which is the standard thread pitch for the vast majority of rimfire suppressors, and it includes a knurled thread protector to protect the muzzle crown when shooting without a can. The suppressor-height fixed sights ensure you can still see your sights clearly with most rimfire suppressors mounted.
How does the FN 502 Tactical differ from the FN 502 MRD?
The main distinction between the two variants is the barrel. The 502 Tactical comes with a 4.6" threaded barrel for suppressor or muzzle device use, while the 502 MRD has a standard non-threaded barrel. The Tactical model also ships with a 10-round and a 15-round magazine, whereas the MRD model typically includes two 10-round magazines.
Is the FN 502 Tactical a good pistol for new shooters?
It's a great option for newer shooters who want to build fundamentals without dealing with heavy recoil or significant ammo costs. The .22 LR cartridge is extremely mild, the controls are intuitive and ambidextrous, and the 509-style ergonomics give new shooters a realistic feel for a full-size pistol platform. The relatively modest weight of 23.7 oz. also helps with handling and control during longer range sessions.





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