Why this is restricted
- California roster (handguns). Off-roster handguns — those not on California's approved roster of certified handguns — may not be sold to the general public; only law-enforcement and other exempt buyers qualify.
- Large-capacity magazine law. Magazines over 10 rounds may not be sold or transferred to the general public in California.
- Law-enforcement / exempt exception. Qualified peace officers and agencies may purchase under the statutory exemption.
- Verified in person. We confirm your LE credentials at the counter before releasing the item — the online attestation does not complete the sale.
- Non-exempt orders. Cannot be delivered; a 50% restocking fee applies (minimum the lower of $50 or the item price).
Description
The FN 509 MRD full size pistol equipped with the patented Low Profile Optics Mounting System for users who want a full-sized duty-style pistol for personal or home defense. The pistol is chambered in 9mm and features a 4.50" cold hammer-forged barrel featuring the FN 509 signature recessed target crown to protect rifling, maintain accuracy and performance throughout the lifespan of the pistol. The slide and frame offer a secure grip and reduced recoil. Includes FN logo soft case, two 10rd magazines, three interchangeable backstraps, four MRD mounting plates, owners manual and gun lock.
Specifications
| Action | Double Action Only |
|---|---|
| Caliber / Gauge | 9mm |
| Capacity | 10 + 1 |
| Barrel length | 4.5" |
| Model | 509 |
| Color | Flat Dark Earth |
| Safety | No Manual |
| Sights | Adjustable Sights |
| Slide | Optic Cut/Serrated |
California compliance
FN 66100723 509 MRD 9mm Luger 10+1 Black Flat Dark Earth PVD Flat Dark Earth
Out of stock right now
This one is out at both our shop and our warehouse. We can still source it — text us at 707-287-6180 and we'll tell you what it takes to get it in.
We can source almost anything. Tell us what you're after and we'll tell you what it takes to get it in.





