FN America FN 509 Tactical - Semi-automatic - Striker Fired - Full - 9MM - 4.5" Barrel - Polymer Frame - Flat Dark Earth - 1-24Rd Magazines and 1-17Rd Magazine - Non-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 -