FN 309 MRD 9mm
Model: 66-102366
FN 309 MRD 9mm
Model: 66-102366
Full Specifications
About This Firearm
The FN 309 MRD is a compact single-action 9mm built for concealed carry. It has an MSRP of $549, and an internal hammer fires it instead of a striker, which gives it a 5.0 lb pull that weighs the same on every shot.
The slide mounts Leupold DeltaPoint Pro and Shield RMS pattern dots directly, with no adapter plate in between. A flush 16-round magazine and a 20-round extended magazine both come in the box, the magazine release reverses, and the accessory rail takes a compact light such as the Streamlight TLR-7 FN names for it. The sights are drift-adjustable polymer with an over-molded green fiber optic front, and they sit in the same dovetail as FN's 509 sights. There is no manual safety on this version, though FN lists a manual-safety model as coming.
If you're cross-shopping, a Ruger RXM has an MSRP of $539, holds 15 rounds at 23.2 oz and comes with steel sights and a tritium front. A Springfield Armory Hellcat Pro OSP has an MSRP of $670 and is lighter at 21.0 oz in a shorter 6.6-inch frame, with the same capacity.
Best For
Strengths & Limitations
- The dot screws straight to the slide, so there is no plate joint to work loose under recoil.
- The 3.8-inch barrel sits in a 7.4-inch frame, which is service-pistol proportions in a carry-size gun.
- FN quotes a 1:10 right-hand twist and an alloy steel barrel.
- The sights are polymer, so plan on replacing them, and the 509 dovetail keeps that cheap.
- A dot has to be on one of two footprints, because FN uses no plate to adapt anything else.
- There is no manual safety on this build, which rules it out where carry or range rules require one.
Category Rankings
How the FN 309 MRD 9mm ranks among compact 9mm Luger handguns.
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Alternatives to Consider
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Ruger RXM 9mm
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$405.99 |
Frequently Asked Questions
Does it share parts with FN's 509 pistols?
The sights do. They sit in the same dovetail FN uses on the 509, so sight sets cross over. The fire control does not, since this pistol runs an internal hammer.
What is the takedown like?
FN lists a takedown that needs no trigger pull, so the slide comes off a cleared pistol without dropping the hammer first.
When did FN introduce it?
FN listed the 309 MRD as new for 2026, which means the aftermarket for it is young next to the one behind FN's older 509 line.
Where is it made?
The United States.
