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Will this work on FNX45 — 1 Answer

by Jay, from OR, United States Asked on August 11, 2024

Name Presma 1911 Full Size Handgun Muzzle Brake (4)
As Low As $43.19 Save Up to 14%
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Answered by Charles Shi, Manufacturer from CA, United States, on March 28, 2025

No, the Presma 1911 Handgun Muzzle Brake (ASMZ15) is designed specifically for 1911-style pistols with a 5" Government-length barrel and a barrel outer diameter of .577" to .581".

The FNX-45 is a completely different design from the 1911—it uses a tilting barrel system, has a threaded barrel (on the Tactical model), and does not share the same barrel dimensions as a 1911. This means the muzzle brake will not be compatible with the FNX-45 without significant modifications, if at all.

If you're looking for a muzzle device for the FNX-45, you should look for a .578x28 threaded compensator or muzzle brake designed specifically for tilting barrel systems.

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