FN 509M Tactical 9mm FDE | 4.5″ | Holosun 407C | 66101938

The FN 509M Tactical is a midsize, optics-ready semi-automatic pistol built on FN’s 509 platform and finished in Flat Dark Earth. It ships with a Holosun 407C red dot sight installed and includes one 15-round and one 24-round magazine. The 4.5-inch threaded, cold hammer-forged barrel and optic-ready slide prioritize adaptable use for range training and competition/practical accuracy work.

For pairing, the included Holosun 407C is a suitable reflex optic that stays well under a $1,000 ceiling and complements the pistol’s low-profile optics mounting system. The firearm’s threaded 1/2×28 barrel also supports common 9mm suppressor mounts when legal and appropriate.

Product Specifications

• The UPC is 845737018429.
• The caliber is 9mm.
• The barrel measures 4.5 inches and is cold hammer-forged with a recessed target crown.
• The barrel features a muzzle thread pattern of 1/2×28.
• The pistol includes a Holosun 407C reflex sight.
• The package contains one 15-round and one 24-round magazine.
• The frame material is polymer with a Flat Dark Earth finish.
• The slide is described as optic cut/serrated and accepts multiple optic footprints.
• The action type is Semi-Auto.
• The sighting system includes Holosun 407C and suppressor-height night sight elements on the slide cover.
• The firearm includes interchangeable backstraps for fit adjustment.
• The trigger type is a flat face design.