
The FN 509 Compact MRD Compensated delivers full-size performance in a compact, optics-ready pistol designed for concealed carry. Its striker-fired operating system, 4.2-inch cold hammer-forged barrel, and factory auto-indexing compensator help reduce muzzle rise and support faster follow-up shots. The FN Low-Profile Optics Mounting System accepts a broad range of miniature red dot optics, while the all-black co-witness iron sights provide a dependable aiming solution. A shortened grip, enhanced texture, interchangeable backstraps, and fully ambidextrous slide stop and magazine release improve control and handling. This Flat Dark Earth configuration includes two 10-round magazines.
Key features
- Factory auto-indexing compensator helps reduce muzzle flip for faster follow-up shots
- Optics-ready FN Low-Profile Optics Mounting System supports direct mounting of numerous miniature red dot optics
- All-black co-witness iron sights provide a reliable backup sighting system
- 4.2-inch cold hammer-forged barrel features a polished chamber, polished feed ramp, and recessed target crown
- Shortened textured polymer grip improves concealment and recoil control
- Interchangeable backstraps allow grip fit customization
The FN 509 Compact MRD Compensated combines compact carry dimensions with an optics-ready platform and factory recoil-management features.
FN 509 Compact MRD Compensated 9mm Flat Dark Earth Pistol: quick facts
- What caliber is the FN 509 Compact MRD Compensated 9mm Flat Dark Earth 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 4.2 inches, overall length 7.5 inches, weight 25.5 ounces.
- What kind of action does it use?
- Semi-Automatic.
- Is it optic ready or threaded?
- Optic ready: Yes; threaded barrel: Yes.
- What sights and finish does it have?
- Sights: Standard Sights; finish: Flat Dark Earth.
- Is it new or used?
- New, in the original packaging.
- Can I buy it in Iowa?
- Yes. It ships to a licensed FFL dealer in Iowa; you pick it up there after the background check. Handguns ship to the Iowa dealer you pick at checkout, where you complete Form 4473 and the background check before pickup.
- Is it in stock?
- Yes, at $1014.29. Orders leave within 1-2 business days; shipping is free over $999.







