FN 509 Midsize Tactical 9mm Luger 4.5in Matte Black Pistol - 15+1 Rounds - FN 509 Midsize Tactical is red dot and suppressor-ready with the added option of a 24rd magazine for higher round-count training sessions. Features FN Low-Profile Optics-Mounting System; Suppressor-height 3-Dot night sights; external extractor; loaded chamber indicator; 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.