FN America FN509M Tactical, Semi-automatic, Striker Fired, Polymer Frame Pistol, Mid-Size, 9MM, 4.5" Barrel, Threaded 1/2x28", PVD Finish, Black, Optic Ready, Flat Faced Trigger, Suppressor Height 3 Dot Night Sights, Non-Manual Safety, 5 Magazines, (1)-15 Round and (4)-24 Round, Includes Ballistic Case and (2) Backstraps 66-101711FN Optics Mounting System Fully Ambidextrous Controls Interchangeable Backstraps • Action: Striker Fired • Capacity: 24 + 1 • Finish: Black • Sights: Suppressor-Height 3-Dot NS • Barrel length: 4.5" • Overall length: 7.9" • 17.76 Free-Float LVOA Rail/ Ambi Bolt Release