Technical Specifications

Type	Semi-automatic pistol
Country of origin	United States · Belgium
Manufacturer	FN America
Produced	2009–present
Variants	See Variants: * FNX-9 (9×19mm) * FNX-40 (.40 S&W) * FNX-45 (.45 ACP) * FNX-45 Tactical (.45 ACP)
Weight	Unloaded: * 21.9 oz (FNX-9) * 24.4 oz (FNX-40) * 33.2 oz (FNX-45) * 33.3 oz (FNX-45 Tac)
Length	* 7.4 in (FNX-9) * 7.4 in (FNX-40) * 7.87 in (FNX-45) * 8.64 in (FNX-45 Tac)
Barrel length	* 4 in (FNX-9) * 4 in (FNX-40) * 4.5 in (FNX-45) * 5.3 in (FNX-45 Tac)
Width	* 1.55 in (FNX-9) * 1.55 in (FNX-40) * 1.58 in (FNX-45) * 1.58 in (FNX-45 Tac)
Height	* 5.45 in (FNX-9) * 5.45 in (FNX-40) * 6.33 in (FNX-45) * 6.7 in (FNX-45 Tac)
Cartridge	* 9×19mm Parabellum * .40 S&W * .45 ACP
Action	Mechanically locked, recoil operated (DA/SA)

Data from FN FNX (Wikipedia, 2026-09-22). Text licensed under CC BY-SA. Image: CC0 — Bradford44.

Compatible Calibers (1)

Loading similar firearms...