The FN 509M Midsize Tactical is a midsize, multi-role 9mm pistol designed for everyday carry, duty, and range use. It ships optics- and suppressor-ready with a 4.5-inch threaded barrel and a configuration intended to balance shootability and capacity. Ergonomics and controls are arranged for fast sight acquisition and repeatable follow-up shots.
Key Specifications
- The caliber is listed as 9mm.
- The barrel measures 4.5 inches and is described as threaded.
- The firearm is described as optic-ready with an FN Low-Profile optics-mounting system.
- The sights are specified as suppressor-height 3-dot night sights.
- The frame material is polymer with a matte black finish.
- The slide is described as optic-ready and serrated (steel slide).
- The package includes two magazines and an FN soft pistol case.
- The barrel thread pattern is 1/2″-28.
- The pistol includes fully ambidextrous controls and interchangeable backstraps.
The FN 509M Midsize Tactical blends a midsize grip frame with a full-feature slide to create a versatile platform for duty, everyday carry, and training. Its optics-ready slide, threaded barrel, and user-configurable ergonomics make it suitable for shooters seeking a practical, adaptable handgun for a range of real-world roles.
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.
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