FN 509 Compact Tactical 9mm FDE — 4.5 in Threaded Barrel (1/2x28), Optics Cut, Suppressor-Height Night Sights, Ambidextrous Controls, 12/15/24-Round Magazines
This FN 509 Compact Tactical stands out with its FDE slide and frame, cold hammer-forged stainless barrel threaded 1/2x28 with an O-ringed cap, and fixed suppressor-height 3-dot night sights. It includes FN’s Low-Profile Optics Mounting System hardware and three factory magazines (12-, 15-, and 24-round), plus a spare backstrap and extra OEM recoil spring assembly. Built in Columbia, South Carolina, it offers fully ambidextrous controls and a 3-slot MIL-STD-1913 rail for accessories.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape overall. Minor, superficial scratches and blemishes are present.
What’s Included
- FN-branded tan soft pistol case
- FN 509 Series owner's manual
- FN Low-Profile Optics Mounting System plates, screws, and hardware kit
- Additional FN OEM recoil spring assembly (sealed bag)
- FN factory cardboard box with matching label
- Spare interchangeable backstrap (factory)
- 1x 24-round magazine
- 1x 15-round magazine
- 1x 12-round magazine
The 4.5 in cold hammer-forged stainless barrel is threaded 1/2x28 and features a recessed crown with an O-ringed thread cap. This setup supports muzzle device installation while protecting the crown.
Both the slide and frame wear an FDE finish. The slide adds front and rear serrations and a dedicated optics cut, and the frame provides interchangeable backstraps for fit tuning.
Fixed suppressor-height 3-dot night sights provide a tall sight picture. The included FN Low-Profile Optics Mounting System plates, screws, and hardware make it straightforward to mount compatible miniature red dots.
Controls are fully ambidextrous, including the slide stop and magazine release. A MIL-STD-1913 accessory rail with three slots accommodates lights or other compatible accessories.
This pistol ships with three factory FN 509 steel magazines (12-, 15-, and 24-round). Capacity is listed as 24+1, and it is compatible with extended 509-series magazines. Production is by FN America in Columbia, South Carolina.