FN 509M Midsize 9mm Luger FDE Optic Ready
Enhanced Every Day Carry 9mm. Low Profile Optics Mounting System. This evolution of the FN 509 Midsize, now featuring the FN Low Profile Optics Mounting System, gives you the option of direct mounting more than 10 different miniature red dot optics to your concealed carry pistol. New Flatter Faced T
