--- title: "FN America 509 Tactical 4.5\" 9mm | Handguns" description: "The FN 509 Tactical is based on FN's submission pistol that the U.S. Army tested for its Modular Handgun Trials, but includes the significant improvements to the design." canonical_url: "https://www.kygunco.com/product/fnh-usa-66-100375-509-tactical-4.5-9mm-24rd-tb-black" meta: author: KYGUNCO "og:description": "The FN 509 Tactical is based on FN's submission pistol that the U.S. Army tested for its Modular Handgun Trials, but includes the significant improvements to the design." "og:image": "https://cdn.kygunco.com/assets/products/137850/thumbnail.jpg?v=1710509056" "og:image:height": "500" "og:image:width": "500" "og:title": "FN America 509 Tactical 4.5\" 9mm | Handguns" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Handguns](https://www.kygunco.com/category/shooting/guns/handguns) / [Semi-Auto](https://www.kygunco.com/category/shooting/guns/handguns/semi-auto) / FNM-66-100375 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/137850/main.jpg?v=1710509056) For illustration purposes only, this image may not be an exact representation of the product. # FN America 509 Tactical 9mm 4.5" 24rd Optic Ready Pistol w/ Threaded Barrel - Black See Price In Cart ** 5 interest-free payments of **$161.40** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$144.07**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To FFL Dealer Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Almost gone. Order now before it sells out. Item # 137850 Style FNM-66-100375 UPC 845737010119 Condition New Manufacturer [FN America](https://www.kygunco.com/brand/fn-america) Model FN509 Tactical Hand Right Hand Finish Black Round Capacity 24 Caliber 9mm Action Double Action Only Barrel Length 4.5 in The FN 509 Tactical, an extension of the FN 509 family, is based on FN's submission pistol that the U.S. Army tested for its Modular Handgun Trials, but includes the significant improvements to the design that were implemented in the FN 509. The pistol features a patent-pending Low-Profile Optics Mounting System that enables the platform to accept miniature red dot (MRD) optics that co-witness with the suppressor-height night sights. The slide cap 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. The 509 Tactical ships with two interchangeable backstraps and FN logo soft pistol case. This model has a black finish and comes with one 17-round magazine and one 24-round magazines. - Frame Finish Matte Black - Frame Material Polymer - Sight Style Night - Slide Finish Matte Black - Slide Material Stainless Steel - Slide Description Serrated Stainless Steel / Optic Cut - Grips Black Textured Interchangeable Backstraps - Sight Configuration 3-Dot Night / Suppressor Height - Includes Two Magazines / Optic Mounting System - Safety No Manual - Barrel Description Steel / Threaded - Weight 27.90 oz - Frame Description Polymer Frame w / Picatinny Rail ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). ## Frequently Bought Together 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/fnh-usa-66-100375-509-tactical-4.5-9mm-24rd-tb-black#webpage","@type":"WebPage","description":"The FN 509 Tactical is based on FN's submission pistol that the U.S. Army tested for its Modular Handgun Trials, but includes the significant improvements to the design.","name":"FN America 509 Tactical 4.5\" 9mm | 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