The FN 509 MRD is a full-size, optics-ready semi-automatic pistol designed for range use, duty applications, and personal/home defense. The MRD model integrates FN’s low-profile optics mounting system to accept many popular red-dot sights while maintaining a full-size slide and longer sight radius for improved sight picture.
The pistol pairs a polymer frame with a metal slide finished in black PVD and includes interchangeable backstraps for a customizable grip. The cold hammer-forged steel barrel and recessed target crown are intended to protect rifling and support consistent 9mm performance across extended service life. The package includes two factory magazines and an FN soft case.
Key Specifications
- The caliber is 9mm.
- The action is Semi-Auto.
- The magazine capacity is 17 rounds.
- The frame material is polymer.
- The frame finish is Matte Black PVD.
- The barrel material is steel.
- The pistol ships with 2 magazines.
- The optic footprint is multiple to accept a range of MRD plates and red-dot optics.
- The overall weight is 26.9 oz.
- The overall length is 7.9 inches.
State Restrictions: This firearm is not available for sale or direct shipment to California, Illinois, Rhode Island, or Washington.
The FN 509 MRD combines full-size ergonomics and an optics-ready slide for modern defensive and duty use. For those searching for an FN 509 pistol for sale with MRD compatibility, buy the FN America / FN Herstal 509 9mm online today.
Related Videos:









Reviews
There are no reviews yet.