
The FN 509 Full Size MRD NMS is a 9mm semi-automatic pistol in Blue/Black, built on FN's 509 platform. It has a 4.5-inch barrel, a 7.4-inch overall length and weighs 26.9 ounces. It holds 10+1 rounds, and two 10-round magazines are included. The Low Profile Optics Mounting System includes adapter plates for compatible red dot optics, and all-black co-witness iron sights provide a backup aiming system.
The full-size frame and longer sight radius give this model a steady, controllable feel on the range. The internal trigger safety means the pistol has no manual safety, so the operation is simple. The polymer grip frame keeps the weight manageable through a long session. Buyers should check their state's rules on capacity and permits, which apply at pickup.
Key features
- Full-size 9mm, 4.5-inch barrel
- FN Low Profile Optics Mounting System
- All-black co-witness iron sights
- Internal trigger safety, no manual safety
- Two 10-round magazines included
The pistol ships to the FFL dealer you choose, where you complete Form 4473 and the background check.
FN 509 Full Size MRD NMS 9mm Blue/Black Pistol: quick facts
- What caliber is the FN 509 Full Size MRD NMS 9mm Blue/Black Pistol?
- It is chambered in 9mm.
- How many rounds does it hold?
- 10+1 rounds; magazines included: 2.
- How big and heavy is it?
- Barrel length 4.5 inches, overall length 7.4 inches, weight 26.9 ounces.
- What kind of action does it use?
- Semi-Automatic.
- Is it optic ready or threaded?
- Optic ready: Yes; threaded barrel: No.
- What sights and finish does it have?
- Sights: Standard Sights; finish: Blue/Black.
- Is it new or used?
- New, in the original packaging.
- Can I buy it in United States?
- Yes. It ships to a licensed FFL dealer in United States; you pick it up there after the background check. Ships to your chosen FFL dealer for Form 4473 and a background check at 21 or older. State permits, waits and magazine limits apply at pickup.
- Is it in stock?
- Yes, at $833.39. Orders leave within 1-2 business days; shipping is free over $999.







