Selected Handgun Detail

FN
Model FNX-40
FN Pistol FNX-40 .40 S&W Variant-1
Scale To:
Gun Dimensions Width:1.55-in
Length:7.4-in Height:5.45-in
Barrel:4-in Weight:24.4-oz
Variant 1 of 2
Gun Rankings
  • Power Factor (180 grain bullet)180000
  • Recoil Factor (180 grain bullet)9.22 ft-lb
  • Total Capacity15 rounds
  • ConcealabilityGood
  • Defense Factor90%
Gun Specifications
Type:Pistol
Caliber:.40 S&W
Action:recoil operated semi-automatic
Trigger:double-action (DA/SA)
Safety:frame mounted safety/decocker
Magazine:14-round
Frame:black polymer
Grip:interchangeable backstrap
Sights:fixed 3-dot
Notes:matte black stainless slide
Manufacturer
Fabrique Nationale Herstal, SA
More Info
About the Gun

The FNX Series features several step-improvements over FN's FNP series polymer pistols. The most noticeable improvements are a MIL-STD mounting rail,proportional 3-dot sights, ambidextrous magazine release and decock lever with a new manual safety setting and four interchangeable backstrap inserts instead of just two that comes with the FNP. Other features include front and rear cocking serrations and serrated trigger guard.

Production

Production of this firearm began in 2012 and continues to be manufactured today. Specific dates for individual units can vary, so checking the serial number with the manufacturer is recommended for precise information on a particular piece.

Market value
Last updated: 7/3/2025

The MSRP for a new one is approximately $699. Current market value for a used one in 95% condition is around $450-$500, depending on local demand and availability.

Cartridge Specifications
Cartridge: .40 Smith & Wesson
Alias: N/A
More Info
Ballistics for This Gun
Selected Bullet Mass:180 grains
MV:1000 ft/sec ME:400 ft-lbs
Analysis

This .40 S&W caliber pistol offers a robust design tailored for shooters seeking a reliable duty or self-defense firearm. Its accuracy is commendable, with a consistent performance at moderate ranges, aided by a well-balanced frame that enhances control. The ergonomics are a key asset, featuring interchangeable backstraps to accommodate various hand sizes, ensuring a secure grip during extended use. Reliability is solid, with the firearm cycling smoothly under diverse conditions. The trigger pull is crisp in single-action mode, averaging around 5 pounds, though the double-action pull feels heavier at approximately 10 pounds, which may require adjustment for some users. Felt recoil is manageable, though the .40 S&W round can be snappy for those unaccustomed to the cartridge. On the downside, maintenance can be somewhat intricate due to the complexity of disassembly, and sourcing replacement parts may pose challenges in certain regions, potentially frustrating owners needing quick repairs.

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