Description FN 509 Tactical FDE chambered in 9mm with one, seventeen round magazine, one twenty four round magazine, and a 4.5″ 1/2″ x 28 threaded recessed target crown barrel. Textured polymer frame with interchangeable backstraps, ambidextrous magazine release, and a MIL-STD-1913 accessory mounting rail. FDE slide with front and rear cocking serrations, ambidextrous slide stop, loaded chamber indicator, and FN Low Profile Optics Mounting System™. Suppressor height Trijicon three dot green tritium night sights with sight protector. Comes in its factory box with FN soft case, owners manual, optic mounting plates and tools, interchangeable backstrap, two magazines, and lock. Must ship to FFL holder. Check local laws regarding “High Capacity” magazines before bidding. Threaded barrel NOT CT legal. Condition: New in box. Barrel Length: 4.5″ Serial: GKS0314535 Manufacturer: FN AMERICA LLC (FNH USA) Caliber: 9x19mm Parabellum Model: FN 509 Tactical FDE Book# 10-740