FN 509C Compact Tactical 9mm | 4.32″ Threaded | 66100782

The FN 509C Compact Tactical is an optics-ready compact 9mm handgun built around the FN Low-Profile Optics Mounting System and a 4.32″ cold hammer-forged threaded barrel. The pistol is configured for common miniature red-dot footprints and ships with fixed 3-dot night sights that can co-witness depending on the optic. Its features—threaded muzzle, optic cut slide, interchangeable backstraps and a MIL-STD-1913 accessory rail—make it suitable for everyday carry and for range use including precision practice and suppressed-shooting builds.

For an optic under $1,000 that pairs well with the FN Low-Profile footprint, consider a compact miniature red dot such as the Holosun 507C; its footprint and low profile are commonly compatible with the FN mounting system and allow co-witnessing with the factory night sights.

Product Specifications

• The UPC is 845737012144.
• The manufacturer is FN America / FN Herstal.
• The model is listed as FN 509 Compact Tactical.
• The caliber is 9mm Luger.
• The barrel measures 4.32 inches and is cold hammer-forged.
• The barrel is fitted with a 1/2 x 28 threaded muzzle.
• The optic footprint is listed as multiple under the FN Low-Profile Optics Mounting System.
• The slide is described as optic cut/serrated and shown in a black finish.
• The frame material is polymer and the frame color is black.
• The sights are fixed 3-dot night sights.
• The pistol includes an FN Low-Profile Optics Mounting System and an FN soft case.
• The grip uses interchangeable backstraps to alter fit.
• The frame incorporates a MIL-STD-1913 Picatinny rail for accessories.
• The muzzle/barrel type is listed as threaded.
• The product is described as optics ready.

The Compact Tactical combines a compact footprint with full-size features: an optics-ready slide, threaded barrel and a Picatinny rail for lights or other accessories. It is configured to support everyday carry and range use while accommodating common miniature red-dot optics and suppressor-compatible muzzle devices.