FN 509 Compact Tactical 9mm – Threaded 4.32 in Barrel, Suppressor-Height Sights, Optics-Cut Slide, Black, Excellent
The FN 509 Compact Tactical stands out with a factory optics-cut slide, a cold hammer-forged 4.32 in threaded barrel, and suppressor-height iron sights in a compact, carryable package. This example is in excellent condition and includes three steel magazines in flush, mid-length, and extended formats, plus FN’s Low-Profile Optics Mounting System hardware.
Built on the proven 509 platform derived from FN’s XM17 MHS entry and reportedly tested with over one million rounds, this pistol combines duty-grade durability with compact dimensions and a generous 24+1 total capacity when using the extended magazine.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This example shows little evidence of prior use. The bore is clean and shiny.
What's Included
- FN-branded soft zip pistol case
- FN 509 owner's manual
- FN Low-Profile Optics Mounting System plates and hardware (assorted plates, screws/posts, O-ring, hex key)
- Interchangeable backstrap insert (spare)
- Additional recoil spring assembly (bagged)
- One 24-round steel magazine (extended)
- One 15-round steel magazine (mid-length)
- One 12-round steel magazine (flush-fit)
The compact tactical configuration pairs a 4.32 in cold hammer-forged, 1/2x28 threaded barrel with suppressor-height iron sights (white dot front, serrated notch rear) for use with muzzle devices. A cover plate is installed over the factory optics cut when no optic is mounted.
FN’s Low-Profile Optics Mounting System is included with plates and hardware, allowing the slide’s MRD cut to be configured using factory components. Front and rear slide serrations aid manipulation, and ambidextrous slide-stop levers support either-hand use.
The black polymer frame features a textured grip with interchangeable backstraps and a three-slot Picatinny accessory rail. The striker-fired action incorporates a trigger safety. Approximate dimensions are 7.4 in OAL, 1.35 in width, and 5.3 in height, with an unloaded weight of about 26.2 oz.
Three steel magazines are included: 12-round flush-fit, 15-round mid-length, and 24-round extended, providing a 24+1 maximum capacity. The slide and frame wear a black finish, and the pistol is made in the USA.