FN 509 9mm Compact 15-Round Optics Ready Handgun - 4" Barrel - Black

Manufactured by FN America
SKU: FN66-100587
MPN: 66-100587
Manufactured by FN America
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Standard orders will ship out in 1 business day (M-F) if ordered by 3:30 pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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Handguns are regulated by the ATF have restrictions and requirements:
 •Your Entire Order will ship only to a Federal Firearm License holder
•Carriers and shipping methods are limited
•A copy of your order/invoice as well as the current FFL License for your local dealer must be emailed to ffl@primaryarms.



FN America built the FN 509 to the strict specifications of the U.S. Military’s MHS program, building upon the proven design of the FNS-C. This striker fired, semi-automatic pistol is suitable for commercial, military, and law enforcement use. The FN509 features a polymer frame, steel slide with front and rear serrations, and a cold hammer forged barrel for a long, accurate service life.

  • Universal Optic Cut
  • Striker fired semi-automatic pistol chambered in 9mm
  • (2) 15-round magazines included
  • Polymer frame with 1913 MIL-STD Picatinny accessory rail
  • (2) interchangeable backstraps for customizable grip
  • All black combat sights
  • Front and rear slide serrations for ease of operation in all conditions
  • 4” cold hammer forged barrel with recessed crown and 1:10 RH twist
  • Polished chamber and feed ramp
  • Overall length: 7.4”
  • Height: 5.2”
  • Width: 1.35”
  • Trigger pull: 5.5 - 7.5 lb
  • Sight radius: 5.79”
  • Weight: 26.5 oz
The FN 509, built from popular platform of the FNS Compact, was made to the intense and exacting specifications of the U.S. Military’s Modular Handgun System (MHS). To meet MHS standards in reliability, durability, and ammunition compatibility, rigorous testing was conducted over many months in the design and production of this firearm. As a result, the product that FN is bringing to market is of the highest quality in those categories, making it an ideal pistol for a long life of service to the user.The FN 509 is a mid-sized, black polymer framed pistol with a black steel slide and cold forged steel barrel. In the box, you’ll receive two 15-round, double-stack magazines. It also ships with two additional backstraps, which can be added to the grip or removed to provide custom comfort for any size hands. Front and rear slide serrations make it incredibly easy to operate the slide in any conditions, even while wearing gloves.The fixed, combat sight system on the FN 509 Pistol blacked out providing a fast sight picture without cluttering the sight picture when cowitnessed with a red dot sight. The addition of a Picatinny rail on the underside of the barrel means you can easily attach your favorite accessories like a flashlight or laser-dot sight. All operation controls are ambidextrous, allowing the operator to lock the slide or release a magazine with either hand.With FN’s long history of quality and innovation, the FN 509 pistol is an ideal choice for anyone looking for a full-size, polymer frame pistol. The battle-hardened history of FN means you can be confident that the FN509 will perform for years to come.FN America is a subsidiary of FN Herstal, a global company with a proud, long-standing heritage. They are committed to providing high quality, dependable and innovative firearms. With an over 127-year history, FN Herstal continues to stand at the cutting-edge of commercial, law enforcement, and military firearms.
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Barrel Length4.0
BrandFN America
Caliber Gauge9mm Luger
Best ForConceal Carry
Frame SizeCompact
Magazine Capacity15
Trigger ActionStriker Fired
Weight26.5 oz.
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

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