FNX-45: FN Herstal's .45 ACP Joint Combat Pistol

by
posted on August 7, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
FNX 45

FN America introduced the FNX-45—a hammer-fired semi-automatic pistol, chambered in .45 ACP—in October 2012. It is modeled after the FNP handgun the company entered for consideration in the U.S. military’s 2007 U.S. Joint Combat Pistol Program, so adaptability to a wide variety of shooter sizes and preferences comes as no surprise.  

The FNX-45 manual safety is ambidextrous, for example. So are the magazine release and slide stop. The gun ships with two interchangeable backstraps with lanyard eyelets and the polymer frame’s grip is checkered to maintain control with gloves or sweaty palms. The front of the trigger guard is serrated and a mil-spec accessory rail on the dustcover provides ample space for mounting lights and lasers.

The gun is designed to survive military abuse, too. Both the slide and cold-hammer forged barrel are constructed from stainless steel. Feed ramp and chamber on the 4.5” barrel are polished. The extractor is external and there is a loaded-chamber indicator. Cocking serrations on the hammer ensure positive operation. Slide and hammer are finished in matte black, although the polymer frame is available in either black or flat dark earth.

Each gun ships with two magazines, either 10- or 15-round capacity. Weight of the FNX-45 empty comes in at 33.2 ozs. and overall length is 7.9”. Standard sights are three-dot, but tritium versions are available as an upgrade. MSRP for handgun starts at $824.

FN America also offers another pair of versions, the FNX-45 Tactical and FNX-45 Tactical FDE. Both come with a threaded barrel with its length increased to 5.3”. They retain all the fire control advantages and performance of the standard model, but they come with four backstraps instead of two and the slide is pre-cut for optics (two red-dot mounting plates are included). Gun weight goes up to 33.3 ozs. and to clear the suppressor most of these pistols will ultimately wear, the handguns have raised, three-dot Trijicon tritium night sights. MSRP for either tactical model comes in at $1,349.

When American Rifleman ran an FNX-45 Tactical FDE model through the paces in 2018 it performed admirably during range sessions. Here’s a look at that video report.

Latest

Gotw Marlin 1894 Trapper 10Mm 1
Gotw Marlin 1894 Trapper 10Mm 1

Gun of the Week: Marlin Firearms Model 1894 Trapper 10 mm

One of the latest Marlin lever-action rifles on the market is the Model 1894 Trapper, and the company now offers the platform in a 10 mm Auto chambering.

Scout Rifle World Shoot Recap

There’s lot to learn about the Scout Rifle, and we tested one at the inaugural Scout Rifle World Shoot.

The Armed Citizen® Nov. 6, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

The Six-Hour Gun: Saving a Family Heirloom

Simple math would have told anyone it wasn't worth fixing a $150 revolver. But to one family, this simple, common revolver meant everything.

Idaho Voters Choose the Winchester Model 1873 for their Official State Firearm

On November 3, Idaho voters picked the Winchester Model 1873 rifle (nicknamed the “Gun that Won the West,” in .44-40 cal.) as the leading candidate to be their state firearm.

PROOF Research Opens New Montana Facility

PROOF Research held a grand opening of its new manufacturing facility in Columbia Falls, Mont. at the end of October.

Interests



Get the best of American Rifleman delivered to your inbox.