FN 509 Midsize Tactical NMS 9mm, FDE, 4.5" Threaded Barrel, Optics-Ready, Suppressor-Height Sights, 15+1
This FN 509 Midsize Tactical NMS stands out with a 4.5" threaded stainless barrel, an optics-cut slide using FN's Low-Profile Optics-Mounting System, and suppressor-height iron sights. Finished in Flat Dark Earth with fully ambidextrous controls and a MIL-STD-1913 rail, it ships with the factory optics plates and hardware, a 15-round magazine, and a matching-labeled factory box.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor scratches and blemishes are present on exterior surfaces. The bore is clean and shiny.
What’s Included
- FN-branded soft zippered pistol case (FDE)
- FN Low-Profile Optics-Mounting System plates and hardware (mounting plates, screws, lugs, hex key)
- Spare interchangeable backstrap
- FN 509 Series owner's manual
- FN factory cardboard box with matching label
- 1x 15-round factory FN 509 steel magazine
The Midsize Tactical NMS configuration pairs a compact grip profile with a 4.5" threaded, cold hammer-forged stainless barrel featuring a recessed crown and a knurled thread protector. The 1/2x28 thread pattern supports common 9mm muzzle devices.
The slide is optics-cut and arrives with the cover plate installed. FN's Low-Profile Optics-Mounting System and included plates and hardware provide direct interface options for popular pistol red dots. Suppressor-height iron sights offer a clear sight picture with the cover plate in place or when a compatible optic is mounted.
Controls are fully ambidextrous, including the slide stop and magazine release, and the pistol operates with internal passive safeties in a striker-fired action. The polymer frame in Flat Dark Earth includes interchangeable backstraps and a MIL-STD-1913 accessory rail for lights or other rail-mounted accessories.
This example is finished in Flat Dark Earth on both slide and frame for a uniform appearance. The serial number on the pistol matches the case label, and it includes a factory 15-round steel magazine and FN-branded soft case to keep the setup organized.