FNX940

FNX940 Details

The FN FNX pistol is a series of semi-automatic, polymer-framed pistols manufactured by FN America. Introduced in 2009, it is chambered for the 9mm, .40 S&W, and .45 ACP cartridges.

The 3D printed FNX940 by Vinh Nguyen is modeled after this pistol and compatible with both the 9mm and .40 S&W FNX versions.

A few of the design concepts were derived from the previously released 3D printed FNS940 model by TMS.

This printed FNX uses plates for rails, rather than a monolithic locking block or integrated into the fire-control housings.

FNX940 in the Wild

Photos

Video

Required Parts for the FNX940

Prerequisites

1 x FNX Parts Kit 9mm or .40S&W

1 x FNX Magazine Compatible with your Chosen Caliber

3D Printed

• FNX Frame

Tools Required

• Gunsmithing Punch Set
• 4.0mm Drill Bit
• Narrow, but not needle nose, pliers
• Flathead screwdriver

The following tools may help, but are not required:

• Flathead screwdriver

Suggested 3D Print FNX940 Settings

The slicer settings for the 3D printed FNX940 include the following suggestions:

Nozzle Size: 0.4mm

Layer Height

• Height: 0.2mm
• Initial Height: 0.14mm

Orientation: Rails Down

Infill Density: 100%

Supports: Tree Supports

Bed Adhesion: Preferred

Filament

• PLA+
• Tough PLA

Changelog

v1.0: Release

• Promotion to release

v0.4: Private Beta Candidate 4

• Revised front takedown lever clearances
• Omitted horseshoe geometry
• Refined front rail fitment geometry

v0.3: Private Beta Candidate 3

• Loosened tolerances for rear rail plates
• Loosened tolerances for front rail / locking block places

v0.2: Private Beta Candidate 2

• Added right-hand safety selector cutout
• Re-introduced some takedown-lever geometry
• Tightened tolerances for the front locking block plates

v0.1: Private Beta Candidate 1

• Initial commit

FNX parts kits are fairly rare and hard to obtain. If you are able to get your hands on this parts kit 3D printing your own FNX is a great way to honor this historical piece!