With our patented Low-Profile Optics Mounting System and unparalleled modularity of the FN 509 platform, the FN 509 Compact MRD joins the ranks packing a full-size punch in a compact, optics-ready package. The pistol is 9mm and striker-fired with 3.7 inches barrel, standard 12+1 capacity and the capability to accept all higher capacity FN 509 magazines. The patented FN Low-Profile Optics Mounting System accepts nearly all commercially available miniature red dot optics and features blackout iron sights that co-witness. The improved controls aid in manipulation, the new improved texturing on the two included backstraps provides better recoil management, and a new flatter faced trigger allows for more controllable trigger press and cleaner break. Full-sized performance in a concealed carry package Striker-fired autoloader Fully ambidextrous controls FN low profile optics mounting system with plate adapters for direct mounting of more than 10 optics All-black co-witness iron sights Slide - easily racked, combat-style sights, external extractor, loaded chamber indicator, Improved front and rear cocking serrations Barrel - recessed target crown, polished chamber and feed ramp Frame - polymer construction with replaceable steel frame rails, shortened grip for easier concealment, enhanced grip textures which enables faster follow-up shots in all conditions Operating controls - fully ambidextrous slide stop lever and magazine release Magazine- high visibility, low-friction follower, polymer base with black finish, comes with (1) 12 round and (1) 15 round magazine or (2) 10 round magazines, Compatible with FN 509 17 round and 24 round magazines with appropriate magazine sleeves Ships with (2) interchangeable backstraps, (1) 12 round (1) 15 round magazine (2) 10 round magazines, owner's manual, locking device, FN logo soft pistol case