Buy the FN 509 Midsize MRD Pistol from BattleHawk Armory! Your EDC just got better with the all-new FN 509A(R) Midsize MRD. 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. The FN 509 Midsize MRD features a four-inch barrel and slide with optics mounting package, a midsized frame, standard 15-round capacity and is compatible with larger capacity FN 509 magazines with use of a sleeve. 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. PRIMARY FEATURES Full-sized performance in a concealed carry package Striker-fired autoloader Double-action operation 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 Cold hammer-forged stainless steel Recessed target crown Polished chamber and feed ramp FRAME Polymer construction with replaceable steel frame/slide rails Enhanced grip textures which enables faster follow-up shots in all conditions Interchangeable backstraps MIL-STD-1913 accessory mounting rail Improved flatter face trigger OPERATING CONTROLS Fully ambidextrous slide stop lever and magazine release MAGAZINE High visibility, low-friction follower; polymer base with black finish Compatible with FN 509 17-round and 24-round magazines with appropriate magazine sleeves SHIPS WITH Two interchangeable backstraps Two 15-round magazines or Two 10-round Owner's manual Locking device FN logo soft pistol case