FN 509 MRD
Factory MRD optic-ready configuration.
Source-backed record
Research record; not firsthand tested.
12 documented specifications, source references, and verification dates are present. Mounting paths are reviewed separately.
pistol
Weight: 27.02 oz
Dimensions: 7.4 in overall length; width and height not published
Compatibility: FN Low-Profile Optics-Mounting System
Not listed
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No merchant links are currently listed.Description
Factory MRD optic-ready configuration.
Specifications
| Frame | Polymer |
|---|---|
| Action | Striker-fired DAO |
| Safety | Internal passive safeties; no manual safety |
| Sights | Fixed three-dot night sights |
| Caliber | 9 mm |
| Capacity | 10, 17, or 24 rounds |
| Controls | Ambidextrous slide stop and magazine release |
| Co-witness | Factory iron sights |
| Source scope | Law-enforcement MRD configuration |
| Trigger pull | 5.5–7.5 lb |
| Barrel length | 4.0 in |
| Optics interface | FN Low-Profile Optics-Mounting System |
Sources and verification
- Manufacturer product page
- Specification source — checked July 23, 2026