Fn 509T 9mm Luger 4.50 inch 17+1 24+1 Matte Finish Optic Ready Threaded Barrel

The FN 509T Tactical brings the proven FN 509 series into a duty-ready, suppressed-capable platform, chambered in 9mm Luger with a 4.50" cold hammer-forged stainless steel threaded barrel (1/2" x 28) and threaded cap with O-ring for reliable suppressor mounting, making it an excellent choice for duty, competition, and defensive use where reduced signature and follow-up shots matter. The optic-ready, serrated stainless slide uses FN's low-profile optics mounting system to accept a broad range of miniature red dot optics that co-witness with the suppressor-height 3-dot night sights, while the slide cap maintains iron-sight protection and provides a textured rake for practical manipulation. The matte black polymer frame with Picatinny rail, interchangeable backstraps, and 27.9 oz weight balances controllability and carry comfort; the double-action-only-style trigger and rugged construction come from the 509 lineage developed from FN's Modular Handgun Trials submission. With factory capacity options of 17+1 or extended 24+1, this semi-auto pistol offers high magazine capacity without adding unnecessary bulk, and it requires FFL transfer. For shooters seeking a robust, optics-ready 9mm with threaded-barrel suppressor capability, the FN 509T blends military-grade durability with practical features for range, tactical, and duty applications.