Full-size punch in a compact package - With our patented Low-Profile Optics Mounting System and proprietary auto-indexing compensator the FN 509 compact MRD compensated joins the ranks packing a full-size punch in a compact package. The pistol is striker-fired with a compensated barrel featuring an approximate 25% muzzle flip reduction. The FN 509 compact MRD compensated comes standard with a 12 and 15 round 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 ambidextrous controls aid in manipulation and the texturing on the two included backstraps provides better recoil management. - PRIMARY FEATURES - Full-sized performance in a concealed carry package - Includes FN Compensator that was introduced on the FN 509 CC Edge - FN Low Profile Optics Mounting System with plate adapters for direct mounting of more than 10 optics - All-black co-witness iron sights - Full ambidextrous controls - World-class military-grade barrels - SLIDE - External extractor; loaded chamber indicator - Aggressive FN 509 slide serrations for improved manipulation - BARREL - Auto-indexing compensator - 4.2-inch Cold hammer-forged barrel - Recessed target crown - Polished chamber and feed ramp - FRAME - Shortened grip for easier concealment - Enhanced grip texture which enables faster follow-up shots in all conditions - Interchangeable backstraps - MIL-STD-1913 accessory mounting rail - OPERATING CONTROLS - Fully ambidextrous slide stop lever and magazine release - MAGAZINE - High visibility low-friction follower; polymer base with black finish - Comes with one 12-round and one 15-round magazine or two 10-round magazines - Compatible with FN 509 17-round and 24-round magazines with appropriate magazine sleeves. - FN 509