Description
FN Individual Officer Discount Program Purchases limited to official Law Enforcement Officers and eligible participants only. The FN 509 just got better with FN’s Low Profile Optics Mounting System, which allows for direct mounting of a variety of mini red dot sights. The FN 509 Full-Size MRD features include a 4.5′ barrel, optics ready slide, no manual safety, flat-faced trigger, full-
