The FN 509 Tactical is an extension of the FN 509 family. The pistol features the FN patent-pending Low-Profile Optics Mounting System that enables the platform to accept more than ten commercially-available miniature red dot (MRD) optics from Trijicon RMR, Vortex Razor, Vortex Viper, Vortex Venom, Burris FastFire, CMore STS II, and more that co-witness with the suppressor-height night sights and remain adaptable to future optics releases with no requirement of direct milling of the slide. The slide cap, for use when not shooting with an optic, has raised sight wings that protect iron sight alignment if the pistol is dropped or jostled, and provides a textured ramp for racking the slide against a belt loop, pant pocket or boot. An FN-signature 4.5-inch, cold hammer-forged, stainless-steel barrel with target crown, 1/2" x 28 threads that accept the bulk of 9mm suppressors available and thread cap with integrated O-ring to prevent loosening during use complete the top end. Lastly, this pistol comes with (2) 10 Round magazines, (2) interchangeable backstraps, locking device, and an FN Logo soft pistol case. Features: FN Low Profile Optics Mounting System Sight Protecting Slide Cap External Extractor; Loaded Chamber Indicator Cold Hammer-Forged Stainless-Steel Barrel Polished Chamber and Feed Ramp 1/2"x28 Threaded Barrel O-Ring Retention Thread Cap Enhanced Grip Texture Interchangeable Backstraps MIL-STD-1913 Mounting Rail Ambidextrous Slide Stop Lever and Magazine Release Whether its Fur and Feather, Self-Defense or the Range, Palmetto State Armory has the Firearms, Ammunition and Accessories you need!#html-body [data-pb-style="62DF8287C1FBE"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style="62DF8287C1FCB"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}