--- title: "FN America 509M Tactical Optic-Ready 9mm Pistol" description: "Optic-ready 9mm pistol with a 4.5\" threaded barrel, suppressor-height 3-dot night sights, ambidextrous controls, and 15rd/24rd magazines." canonical_url: "https://www.kygunco.com/product/fn-america-66-100837-fn-509m-tactical-9mm-4.5-nms-blk-blk-ns-15-24rd" meta: author: KYGUNCO "og:description": "Optic-ready 9mm pistol with a 4.5\" threaded barrel, suppressor-height 3-dot night sights, ambidextrous controls, and 15rd/24rd magazines." "og:image": "https://cdn.kygunco.com/assets/products/216539/thumbnail.jpg?v=1712593225" "og:image:height": "500" "og:image:width": "500" "og:title": "FN America 509M Tactical Optic-Ready 9mm Pistol" --- > 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-66-100837 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/216539/main.jpg?v=1712593225) For illustration purposes only, this image may not be an exact representation of the product. # FN AMERICA 509M Tactical 9mm 4.5" 24rd Optic Ready Pistol w/ Threaded Barrel & Contrast Night Sights The FN 509 Midsize Tactical is a 9mm optic-ready pistol with a 4.5" cold hammer-forged stainless steel threaded barrel, suppressor-height 3-dot night sights, and fully ambidextrous controls. It supports 15rd and 24rd magazines, includes a MIL-STD-1913 rail, interchangeable backstraps, enhanced grip texture, and a duty-safe trigger. See Price In Cart ** 5 interest-free payments of **$125.43** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$111.96**/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 Fulfilled by a partner warehouse. ** Partner Fulfilled ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 216539 Style FNM-66-100837 UPC 845737015169 Condition New Manufacturer [FN America](https://www.kygunco.com/brand/fn-america) Model FN 509M Tactical Hand Right Hand Finish Black Round Capacity 24 Caliber 9mm Action Semi-Auto Barrel Length 4.5 in Perfectly suited for concealed carry, home defense and duty use, the multi-role FN 509 Midsize Tactical is red dot and suppressor-ready and offers a full-hand 15-round grip frame with a 24-round magazine for higher round-count training sessions. The perfectly balanced proportions are optimized for shootability and fast sight acquisition over smaller pistols, giving the user a just-right recoil impulse that provides superior control and accuracy at speed. The smooth trigger has a clean break at around 5lbs. For the tactical shooter seeking the perfect balance of capacity and concealability who values quality, and versatility, look no further than the FN 509 Midsize Tactical. - FN Low-Profile Optics-Mounting System - Fully ambidextrous controls - 15-round and 24-round magazines - Suppressor-height 3-dot night sights - Add most MRDs in minutes - Long-wearing PVD finish - External extractor; loaded chamber indicator - Cold hammer-forged stainless steel barrel - Recessed target crown - Polished chamber and feed ramp - 1/2" x 28 threaded Barrel - O-Ring retention thread cap - High endurance striker - Duty-safe trigger with ≈ 5.6-lb. pull - Enhanced grip texture which enables faster follow-up shots - Interchangeable backstraps - MIL-STD-1913 rail - Fully ambidextrous slide stop lever and magazine release - High visibility, low-friction follower; polymer base with black finish **SPECIFICATIONS** - Caliber: 9mm - Operation: Double-action - Mag Capacity: 15/24 Rd. - Weight: 27.9 oz. - Barrel Length: 4.5" - Overall Length: 7.9" - Twist Rate: 1:10" RH - Height: 5.2" - Width: 1.35" - Trigger Pull: 4.5 - 6.7 lb. - Sight Radius: 5.8" ** 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/fn-america-66-100837-fn-509m-tactical-9mm-4.5-nms-blk-blk-ns-15-24rd#webpage","@type":"WebPage","description":"Optic-ready 9mm pistol with a 4.5\" threaded barrel, suppressor-height 3-dot night sights, ambidextrous controls, and 15rd/24rd magazines.","name":"FN America 509M Tactical Optic-Ready 9mm 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