The FN 509 MRD full-size pistol is an optics-ready, duty-style 9mm designed for practical shooting roles including everyday carry in jurisdictions where full-size pistols are preferred, home defense, and range use. It features a polymer frame finished in Flat Dark Earth and ships with multiple mounting plates to accept a range of miniature red dot optics. The package includes two 17-round magazines and a soft case for transport and storage.
Key Specifications
- The caliber is 9mm Luger.
- The standard magazine capacity is 17 rounds.
- Included in the box are two 17-round magazines along with mounting plates and a soft case.
- The action is Semi-Auto striker-fired.
- The frame is constructed of polymer with an enhanced grip texture.
- The finish and frame color are Flat Dark Earth.
- The pistol features an FN low-profile optics mounting system with multiple footprint plates for common red dot optics.
- The optic footprint compatibility is listed as multiple.
- The overall length is 7.9 inches.
- The factory package includes three interchangeable backstraps for grip customization.
The FN 509 MRD brings a service-oriented platform into a fitted, optics-ready package. Its polymer frame and MRD mounting system make it a practical choice for shooters who plan to use a red dot or prefer a modern full-size handgun platform for duty, home defense, or range work. The factory inclusion of two high-capacity magazines, interchangeable backstraps, and mounting plates provides immediate adaptability for optics and ergonomics.
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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