The FN 509™ MRD is engineered for dependable, everyday personal defense with a focus on ease of use and consistent performance. Designed around an internal hammer-fired system, it delivers a crisp trigger feel while reducing slide racking effort for smoother operation. With balanced dimensions and a modern optics-ready design, the 509 MRD prioritizes control, reliability, and confidence in a compact defensive platform.
FEATURES
- Internal hammer-fired operating system for a smooth, consistent trigger pull
- FN Optics Mounting System supports direct mounting of red-dot optics
- Reduced slide racking force for easier manipulation
- Recessed target crown to help protect the barrel and maintain accuracy
- Reversible magazine release for improved adaptability
- Green fiber-optic front sight paired with a high-visibility U-notch rear
SPECIFICATIONS
- Caliber: 9mm Luger
- Action: Single Action Only (SAO)
- Capacity: 16-round and 20-round magazines
- Barrel Length: 3.8 in
- Barrel Material: Alloy steel
- Twist Rate: 1:10 RH
- Frame Material: Polymer
- Safety: Thumb safety
- Sight Radius: 6.3 in
- Overall Length: 7.4 in
- Height: 5.4 in
- Width: 1.26 in
- Weight: 22.5 oz
