FN 66-100375 509 Tactical 9mm Luger 4.50" Black Interchangeable Backstrap

Based on FN’s submission pistol tested by the U.S. Army for its Modular Handgun Trials, the FN 509 Tactical is an extension of the FN 509 family that features upgrades which are significant to the design implemented in the FN 509. The FN 609 Tactical comes with an FN-signature, cold hammer-forged, stainless-steel barrel with target crown, 1/2" x 28 threads that accept the bulk of 9mm suppressors available, and a thread cap with integrated O-ring that prevents loosening during use, and a slide cap with raised sight wings that protects the iron sight alignment in case of jostling or dropping. One more notable feature of this model is FN’s Low-Profile Optics Mounting System; this makes the platform compatible with 10+ commercially-available miniature red dot (MRD) optics that co-witness with the suppressor-height night sights, while remaining adaptable to future optics releases without any need of direct milling the slide.