FN FNX-45 Tactical .45 ACP FDE Night Sights 10+1

About this product

What is the FN FNX-45 Tactical .45 ACP FDE Night Sights 10+1? The FN FNX-45 Tactical is a full-size, suppressor-ready duty pistol engineered for regulatory compliance, featuring a cold hammer-forged threaded barrel, an optics-milled slide, and fully ambidextrous controls. It’s built on a Flat Dark Earth polymer frame with a 10+1 capacity, shipped with two magazines and interchangeable backstraps. This configuration is purpose-driven for shooters navigating the added complexity of Title II/NFA-regulated accessories like suppressors or red-dot optics.

What is the FN FNX-45 Tactical used for?

The FNX-45 Tactical is a primary host for suppressed and optics-equipped handgun setups under the NFA. The factory-threaded 5.3" barrel with ½x28 TPI threads allows immediate suppressor mounting without custom gunsmithing, and the milled slide with included mounting plates accommodates popular red-dot footprints like the Trijicon RMR. Its 33.7-ounce unloaded weight provides a stable platform for heavy .45 ACP subsonic loads, making it a common choice for private-range duty, dynamic training courses, and as a suppressor host.

How does the FN FNX-45 Tactical compare to the HK Mark 23?

The FNX-45 Tactical is more modern and user-serviceable than the iconic, but dated, HK Mark 23. Where the Mark 23 operates strictly as a single-action-only pistol with a proprietary rail, the FNX-45 Tactical offers a double-action/single-action trigger with a decocking safety and a standard Picatinny accessory rail—a critical difference for shooters who prioritize safe, decocked carry. Additionally, the FNX-45 Tactical's total weight of 33.7 ounces is over 12 ounces lighter than the Mark 23's 46-ounce frame, making it less fatiguing during extended training sessions.

What does it weigh and what are the dimensions?

The pistol weighs 33.7 ounces (956 grams) unloaded and measures 8.2 inches in length and 5.6 inches in height. The grip width, using the medium backstrap, is 1.45 inches, and the slide width is 1.1 inches. These dimensions create a duty-sized platform; compared to a compact carry pistol like a Glock 30, it is 1.1 inches longer and 1.3 inches taller.

Who is this NOT for?

This pistol is not for budget-conscious buyers or those seeking a concealed carry weapon. With an MSRP of $1,200.99, it requires a significant investment before adding a suppressor and optic, which often cost the same as the firearm. Its full-size frame and 8.2-inch overall length make it impractical for concealed carry without a dedicated, bulky holster setup. A shooter looking for a simple .45 ACP for basic range use would be better served by a more affordable platform like the Stevens 334 bolt-action.

What's in the box?

The factory case contains the pistol, two 10-round steel magazines, three interchangeable polymer backstraps (small, medium, large), four mounting plates for common micro red-dot footprints, a plastic magazine loader, a chamber flag, and the standard FN owner's manual with warranty card. You'll also find a thread protector for the barrel when a suppressor is not installed.

Is the FN FNX-45 Tactical worth it at $1,200.99?

At $1,200.99, the FNX-45 Tactical is worth the premium if you require its specific technical features for suppressor or optics use. This price includes the factory optic-cut slide and threaded barrel, two features that add $300-500 in aftermarket costs to a standard pistol. For shooters who value out-of-the-box NFA readiness and ambidextrous controls, it eliminates gunsmithing lead times and additional compliance paperwork. If your use case is casual plinking without accessories, consider a standard FNX-45 or a more basic shotgun platform like the Stevens 555 Sporting.