FN 509D Duty MRD

The FN 509D Duty MRD delivers more precision and versatility than any other duty-rated handgun. The exclusive upgrades for law enforcement place every advantage in officers’ hands, with unmatched accuracy from a striker-fired handgun.
Making up the new high-performance package are 3-dot tritium sights co-witness with the low profile MRD for maximum sighting versatility and a clean sight picture, day or night. With a polished feed ramp and chamber, consistent feeding and extraction exceeds every standard. The smooth, drop-safe, precision trigger and high-performance striker has a positive wall before a clean break, improving accuracy for all officers. With a target-crowned, hammer forged barrel, a lifetime of tight groups is in reach.
The 509D Duty MRD is the choice for agencies who can’t settle for less than 100% reliability. With unmatched longevity in the most demanding trials, the FN 509 platform has been tested beyond 1-million rounds.
CALIBER
OPERATION
MAG CAPACITY
WEIGHT
BARREL LENGHT
OVERALL LENGHT
HEIGHT
WIDTH
SPECIFICATIONS
Patented FN Low-Profile Optics Mounting System fits most MRDs
Precision accuracy with unmatched sighting versatility
Quickly mount MRDs with the FN Low Profile Optics Mounting System™
3-dot tritium night sights co-witness to MRD, rear sight dovetail driftable
External extractor, loaded chamber visual indicator
4″ Target-crowned, hammer forged barrel for precision accuracy
Polished chamber and ramp for reliable feeding and extraction across ammunition types
Three interchangeable backstraps fit all hand sizes, improves sight recovery
Multi-surfaced texture for the perfect grip and faster follow up shots
Mil-Std 1913 rail fits all common weapon lights
Black 17-rd magazines, high-vis low-friction follower
Three interchangeable backstraps
Three 17-round magazines
Four MRD mounting plates
OPERATION
Duty-rated trigger breaks cleanly at 90°
Superior ergonomics for maximum speed and control
Front and rear cocking serrations for clean slide manipulations
Drop-safe, duty-rated fire control group
Best-in-class flat-face trigger breaks cleanly at 90°
New, high-performance conical striker reduces trigger pull weight by ≈1-lbs.
4.5-lbs. to 6.0-lbs. trigger pull
Ambidextrous slide stop
Right-hand only magazine release
MAINTENANCE & WARANTY
Can be disassembled without pulling the trigger