FN 509 Tactical, Semi-automatic, Striker Fired, Size, 9MM, 4.5" Barrel, Polymer Frame, Black, 4-24Rd Magazines and 1-17Rd Magazine, No-Manual Safety, Suppressor Height Night Sights, Low Profile Optics Mounting System, Threaded Barrel, Sight Protecti

FN America FN 509 Tactical, Semi-automatic, Striker Fired, Full Size, 9MM, 4.5" Barrel, Polymer Frame, Black, 4-24Rd Magazines and 1-17Rd Magazine, No-Manual Safety, Suppressor Height Night Sights, Low Profile Optics Mounting System, Threaded Barrel, Sight Protecting Slide Cap, Loaded Chamber Indicator, Interchangeable Backstraps, 1913 Accessory Rail, Ambi Slide Stop Lever, Ambi Mag Release, FN Soft Case 66-101649