The FN 509 Midsize MRD 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 combination of a 4″ slide and barrel with a midsize frame retains full-sized pistol performance in an easily-concealed package. The improved controls aid in manipulation while the improved texturing on the two included backstraps provides better recoil management. Features a flat faced trigger; fully ambidextrous controls; MIL-STD-1913 accessory mounting rail; cold hammer-forged stainless steel barrel with a recessed target crown; combat-style sights and improved front and rear cocking serrations. Includes two magazines case locking device and owners manual.