FN 509 Midsize Tactical 9mm, FDE, 4.5 in Threaded Barrel, MRD Optics Cut, Suppressor-Height Tritium Sights, Non-Manual Safety, 15+1
This FN 509 Midsize Tactical stands out with its factory FDE slide and frame, 4.5 inch cold hammer-forged threaded barrel, and FN Low-Profile Optics-Mounting System (MRD) with cover plate. Suppressor-height tritium night sights with protective rear wings, ambidextrous controls, and a 15+1 capacity round out a feature set purpose-built for modern use. The pistol is the non-manual safety configuration and is marked FN Columbia, SC USA on the slide.
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.
What's Included
- 1x 15-round factory FN 509 steel magazine
- FN factory cardboard box
- Sig Sauer branded zipper case
The 4.5 inch cold hammer-forged barrel is extended and threaded 1/2x28 with a knurled thread protector, supporting use with compatible muzzle devices. The design prioritizes durability and accuracy while retaining a midsize profile.
The slide features FN's Low-Profile Optics-Mounting System (MRD) with a cover plate when no optic is installed. Suppressor-height tritium night sights co-witness and the rear sight includes protective wings for added durability.
Controls are fully modern, with an ambidextrous slide stop and a reversible, ambidextrous magazine release. The frame uses aggressive texturing for secure purchase, and the accessory rail provides four Picatinny slots for compatible lights or accessories.
This striker-fired, non-manual safety configuration uses internal passive safeties. The pistol is finished in matching FDE on both slide and polymer frame and ships with a factory 15-round magazine for a 15+1 capacity.