Get ultimate tactical performance with the FN FNX-45 Tactical in Black (MPN 66966). Features a 5.3" threaded barrel, night sights, optics-ready slide, and 15+1 capacity.

The FN FNX-45 Tactical (MPN: 66966) is a rugged, hammer-fired, double-action/single-action (DA/SA) tactical pistol chambered in .45 ACP. Originally engineered for the U.S. Joint Combat Pistol Program, this full-sized handgun is built to offer duty-grade reliability, high capacity, and suppressor-ready capability straight out of the box.

Equipped with a 5.3-inch cold hammer-forged stainless steel threaded barrel (.578x28 tpi), the FNX-45 Tactical easily accepts suppressors, compensators, and muzzle devices. The black stainless steel slide comes optics-ready with multiple mounting adapters and is outfitted with elevated, high-profile 3-dot tritium night sights designed to clear standard-diameter suppressors and co-witness with your choice of red dot sights.

The ergonomic, aggressively textured polymer frame features fully ambidextrous controls—including the safety/decocking levers, slide stop, and magazine release—ensuring complete ease of operation for both left- and right-handed shooters. This specific package comes complete with three 15-round magazines, interchangeable backstraps to customize grip sizing, and a fitted FN ballistic nylon case.

Key Features & Specifications

  • Caliber: .45 ACP

  • Action: Double-Action/Single-Action (DA/SA) with manual safety/decocker

  • Capacity: 15+1 rounds (Includes three 15-round magazines)

  • Barrel: 5.3" Cold hammer-forged stainless steel with .578x28 tpi threaded muzzle

  • Slide: Optics-cut stainless steel slide with a matte black finish

  • Sights: Suppressor-height 3-dot tritium night sights

  • Frame: Black polymer with aggressive checkering and MIL-STD-1913 accessory rail

  • Controls: Fully ambidextrous safety/decocking levers, slide stop, and mag release

  • Weight: 33.3 oz (empty)

  • Overall Length: 7.9"

  • In the Box: FNX-45 Tactical pistol, (3) 15-round magazines, optics mounting plates, interchangeable backstraps, and zippered nylon case

 

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