Fn 509M MRD 9mm Luger 4 in 15+1 Flat Dark Earth Optic Ready Serrated Slide

The FN 509 Midsize MRD brings a carry-ready package to shooters who want a reliable, compact 9mm with modern on-demand features, and this FN 66100741 model pairs a 4" recessed crown barrel and 15+1 capacity with a flat dark earth PVD optic-ready, serrated steel slide for direct-mounting of low-profile red dots via the FN Low Profile Optics Mounting System. Built on the proven FN 509 series platform, the midsize polymer frame with Picatinny rail and FDE interchangeable backstraps balances concealment and control for everyday carry, while the ambidextrous controls and improved texturing on the backstraps make manipulation and recoil management smoother whether you're running defensive drills or hiking into the field. The DAO, flatter-faced trigger yields a more controllable press and a cleaner break, and co-witness iron sights give a reliable backup sight picture when using an optic. Ideal for EDC, range sessions, and defensive use, this FN handgun meets common hunting and duty needs where a compact, durable, optic-ready 9mm is required; an FFL transfer is required for purchase.