Fn 509M Mrd 9mm Luger 4 inch 10+1 Flat Dark Earth Optic Ready

The FN 509 Midsize MRD from FN brings a robust, concealment-friendly option to your everyday carry and duty rotation, combining a 4" recessed crown barrel, optic-ready serrated steel slide with the FN Low Profile Optics Mounting System, and a Flat Dark Earth polymer frame with Picatinny rail for lights or lasers. With a 9mm Luger chambering and a 10+1 standard capacity, this midsize 509 model balances shootability and concealability for urban carry, off-duty work, or range training, and accepts larger-capacity FN 509 mags with a sleeve for when capacity matters. The ambidextrous controls, improved texturing and FDE interchangeable backstraps improve recoil management and grip purchase during rapid strings, while the flatter-faced trigger promotes a more controllable press and cleaner break for better follow-up shots. Co-witness iron sights retain a backup option when a red dot is mounted, and the DAO action with no external manual safety streamlines presentation under stress. Range-tested for reliability and built on the proven FN 509 series platform, this optic-ready midsize 9mm is suited to concealed carriers, law enforcement professionals, and serious recreational shooters; FFL required for purchase.