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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" x 28 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. The 509 Tactical ships with two interchangeable backstraps and FN logo soft pistol case. This model has a black finish and comes with three 10-round magazines.
| Brand | FN |
| Category | Pistols |
| Series | Tactical |
| Caliber | 9mm Luger |
| Barrel Length Range | 4" to 4.99" |
| Model | 509 |
| Capacity | 10+1 |
| Action | DAO |
| Frame Finish | Matte Black |
| OAL | 7.90" |
| Frame Material | Polymer |
| Hand | Right |
| Sight Style | Night |
| Slide Finish | Matte Black |
| Slide Material | Stainless Steel |
| Slide Description | Serrated Stainless Steel / Optic Cut |
| Grips | Textured Black Interchangeable Backstraps |
| Sight Configuration | 3-Dot Night, Suppressor Height |
| Includes | 3 Magazines / Optic Mounting System |
| Safety | Loaded Chamber Indicator |
| Barrel Description | Threaded |
| Barrel Length | 4.50" |
| Max Capacity | 10 |
| Weight | 27.90 oz |
| Frame Description | Polymer w / Picatinny Rail |
