The FN 509 F MRD pistol (brand part no. 66-101345LE) builds on the proven FN 509 lineup with duty-oriented upgrades, delivering precision and versatility that FN positions above other duty-rated handguns. FN America equips the pistol with a conical striker and a flat-faced, duty-rated trigger for unmatched accuracy from a striker-fired handgun, and the FN Low-Profile Optics-Mounting System supports fast sight acquisition and consistent shot placement. Among duty-oriented semi-auto handguns, this FN 509 F MRD favors shooters who want duty-grade precision in a striker-fired platform.
Key Specifications
- The striker is a conical striker, refined for consistent ignition.
- The trigger is flat-faced and duty-rated, for unmatched striker-fired accuracy.
- The optic mount is FN’s Low-Profile Optics-Mounting System, for fast sight acquisition.
- Chambered in 9mm.
- The frame is polymer with an integrated accessory rail.
Frequently Asked Questions
What makes this trigger different from a standard striker-fired trigger? A conical striker and flat-faced, duty-rated design deliver more consistent, accurate shot placement.
Is this pistol optic ready? Yes, via FN’s Low-Profile Optics-Mounting System.
Buy the FN 509 F MRD, Duty Rated
Duty-grade precision from a refined striker-fired trigger is exactly what this FN 509 F MRD delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.
| UPC | 845737015152 |
|---|---|
| Manufacturer | FN America / FN Herstal |
| Manufacturer Part Number | 66-101345LE |







