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 the company's patent-pending Low-Profile Optics Mounting System that enables the platform to accept more than ten commercially-available miniature red dot (MRD) optics that co-witness with the suppressor-height night sights and remain adaptable to future optics releases with no requirement of direct milling of the slide.

• FN Low Profile Optics Mounting System™
• Threaded Barrel
• Suppressor Height Night Sights
• Cold Hammer-Forged Barrel

FN America FN 509 Tactical, Semi-automatic, Striker Fired, Full, 9MM, 4.5" Barrel, Polymer Frame, Flat Dark Earth, 1-24Rd Magazines and 1-17Rd Magazine, Non-Manual Safety, Suppressor Height Night Sights, Low Profile Optics Mounting System, Threaded Barrel, Sight Protecting Slide Cap, Loaded Chamber Indicator, Interchangeable Backstraps, 1913 Accessory Rail, Ambi Slide Stop Lever, Ambi Mag Release, FN Soft Case 66-100373