FN Herstal 509M MRD Pistol 9mm 4in 15rd Black
Low Profile Optics Mounting System. Direct Mount Your Red Dot To Your Concealed Carry. Your EDC just got better with the all-new FN 509 Midsize MRD. This evolution of the 509 Midsize, now featuring the FN Low Profile Optics Mounting System, gives you the option of direct mounting more than 10 differ
