FN 509 Tactical 9mm, Viper Red Dot, Threaded Barrel, Optic

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FN 66100844 509 Tactical 9mm Luger 17+1/24+1 4.50″ Threaded Barrel, Matte Black Polymer Frame w/Mounting Rail, Optic Cut Matte Black Stainless Steel Slide, No Manual Safety, Includes Viper Red Dot

The FN 509 Tactical, an extension of the FN 509 family, is based on FN’s submission pistol that the U.S. Army tested for its Modular Handgun Trials, but includes the significant improvements to the design that were implemented in the FN 509. The pistol features a patent-pending Low-Profile Optics Mounting System that enables the platform to accept miniature red dot (MRD) optics that co-witness with the suppressor-height night sights. The slide cap has raised sight wings that protect iron sight alignment if the pistol is dropped or jostled, and provides a textured ramp for racking the slide against a belt loop, pant pocket or boot. An FN-signature 4.5-inch, cold hammer-forged, stainless-steel barrel with target crown, 1/2″x28 threads that accept the bulk of 9mm suppressors available and thread cap with integrated O-ring to prevent loosening during use complete the top end. Includes three magazines and Vortex Viper Red Dot.

$747.99

59 in stock

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FN 509 Tactical 9mm Luger – No-Nonsense Performance, Built to Dominate 💥

Engineered for real-world use, the FN 509 Tactical 9mm (Model 66100844) delivers uncompromising firepower, precision, and adaptability — right out of the box.

Built around a matte black polymer frame with aggressive texturing and an integrated mounting rail, this pistol is ready to run lights, lasers, or both. The 4.50″ threaded barrel supports suppressors or compensators, and the optic cut slide comes pre-installed with a Vortex Viper Red Dot — giving you fast target acquisition and enhanced accuracy at any distance.

No manual safety. No nonsense. Just pure tactical readiness. ⚔️

Key features include:

  • Chambered in 9mm Luger
  • Ships with (1) 17-round and (1) 24-round magazine
  • Matte black stainless steel slide with enhanced serrations
  • MIL-STD-1913 rail for accessory customization
  • Suppressor-height night sights co-witness perfectly with the Viper
  • Striker-fired system with crisp, consistent trigger pull

Whether you’re training, protecting your home, or upgrading your EDC, the FN 509 Tactical delivers the performance and reliability trusted by military and law enforcement worldwide.

📦 Out-of-the-box optics-ready.
🔫 Suppressor-ready barrel.
🔥 24+1 capacity for extended confidence.

Built for those who know the difference. Upgrade your loadout today.

UPC

845737012311
Manufacturer

FN America / FN Herstal
Manufacturer Part Number

66100844
Action

Double Action Only
Barrel Length

4.50"
Caliber/Gauge

9mm
Capacity

17 + 1
Safety

Loaded Chamber Indicator
Sights Type

Night
Slide Description

Optic Ready/Serrated

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