FNH USA FNX-40 .40 S&W DA/SA Full-Size Pistol, Black, 4-inch Barrel, 14+1, Fully Ambidextrous Controls, 3 Magazines, Case
This FNH USA FNX-40 stands out as a full-size, DA/SA hammer-fired .40 S&W with fully ambidextrous controls and a documented factory test card. It includes three 14-round magazines, interchangeable backstraps, and the original FN hard case. Marked "FNH USA Fredericksburg VA" with "MADE IN USA" on the frame, it offers a proven feature set with a clean bore and user-focused ergonomics.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present from previous use. Please review the photos for a closer look.
What’s Included
- FN factory hard case with FN logo and blue latches
- Owner's manual
- Interchangeable backstrap set (spares)
- 3x 14-round FNX-40 magazines
- FN factory test card/envelope with matching serial and rifling data
The FNX-40 is a full-size, DA/SA hammer-fired pistol with a manual safety/decocker and fully ambidextrous controls, including the safety/decocker, slide stop, and magazine release. Its exposed ring hammer and straightforward control layout support confident operation for both left- and right-handed users.
The 4-inch barrel uses a 1:16 left-hand twist with 6-groove rifling, documented on the factory test card dated 09/23/2013. The bore condition is excellent, and the pistol features an external extractor and front and rear cocking serrations for positive slide manipulation.
The black polymer frame includes interchangeable backstraps for grip fit, an integral multi-slot accessory rail on the dustcover, and a lanyard loop at the heel. The slide carries fixed, dovetailed 3-dot sights. Markings include "FNH USA Fredericksburg VA" on the slide and "MADE IN USA" on the frame, with the serial number plate located on the dustcover rail.
Capacity is 14+1 with steel double-stack magazines, and three 14-round magazines are included. The package is rounded out by the original FN factory hard case, owner's manual, backstrap spares, and the factory test card/envelope confirming the rifling data.

