The FN 509M Tactical from FN America / FN Herstal is a midsize semi-automatic handgun chambered in 9mm Luger with a 4.5-inch threaded barrel. This optics-ready flat dark earth (FDE) model ships as a promotional bundle that includes five 10‑round magazines and suppressor-height night sights. The design emphasizes shootability and modularity for range, duty, and defensive contexts.
Key Specifications
- The caliber is 9mm Luger.
- The action is semi-automatic.
- The barrel measures 4.5 inches and features 1/2″-28 threading.
- The magazine capacity is 10 rounds for the magazines included with this bundle.
- This bundle ships with 5 magazines (ten-round each).
- The optic footprint supports multiple mounting patterns for red-dot sights.
- The sighting system is suppressor-height night sights.
- The frame and slide finish is Flat Dark Earth.
- The frame material is polymer.
- The unloaded weight is approximately 27.9 oz.
This FN 509M Tactical bundle pairs a midsize platform with threaded-barrel and optics-ready capability while providing multiple factory magazines for immediate use at the range. Its combination of a 4.5-inch threaded barrel, night sights, and multiple optic footprints makes it suitable for shooters seeking a versatile handgun for range work, duty applications, and defensive preparedness without unnecessary embellishment.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.




