What's in the Box FN509C Tactical 9mm Flat Dark Earth Pistol (1) 12-Round Magazine (1) 24-Round Magazine (2) Interchangeable Backstraps Locking Device FN Logo Soft Pistol Case Owner's Manual Introducing the FN 509 Compact Tactical. Once you see it, you ll wonder if it has any competition. And once you shoot it, you ll know it s in a class of its own. Featuring FN s patented Low-Profile Optics Mounting System , the FN 509 Compact Tactical is compatible with most commercially available co-witnessing miniature red dot optics, while remaining adaptable to future optics releases with no additional modifications required. Go from 0 to 60 in three mags flat thanks to the FN 509 Compact Tactical s envy-inducing 24-round capacity. Packing heavy firepower into a convenient carry firearm, the FN 509 Compact Tactical features FN's signature cold hammer-forged, stainless-steel threaded barrel and an integrated O-ring for consistent, trouble-free performance. Optics compatible with the FN 509 Compact Tactical include Trijicon RMR, Leupold DeltaPoint Pro, Vortex Razor, Viper & Vvenom, Burris FastFire II & III, Docter Optic and more! Firearm Specifications Manufacturer: FN America Model: 509 Compact Tactical Caliber: 9mm Barrel: 4.32" Cold Hammer Forged Stainless / 1/2"x28 Threaded Barrel / O-Ring Retention Thread Cap Overall Length: 7.4" Frame: Flat Dark Earth / Enhanced Grip Texture / MIL-STD-1913 Accessory Mounting Rail Slide: FN Low Profile Optics Mounting System / Sight Protecting Slide Cap Sights: Suppressor Height Night Sights Magazine Capacity: 12//24 Magazines Included: 2 Weight: 26.2 oz. Other Features: Fully Ambidextrous Slide Stop Lever & Mag Release / 5.5-7.5 lbs Trigger Pull / Interchangeable Backstraps