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FNX-45™ Tactical MRAT Compensator Kit


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The MRAT Compensator for the FNX-45 is a Direct Thread-on compensator that reduces muzzle rise by 40-60% (depending on ammunition).

A captive-spring guide rod assembly is included, which is necessary for proper function due to the reduced slide velocity produced by the MRAT. The spring retaining nut is removable to allow for spring replacement and additional tuning.

This kit was tested with a variety of SAAMI Spec ammunition; from the lightest “target” rounds to +P duty rounds. Hand loads with less than SAAMI Spec pressure may induce malfunctions.

  • Reduced felt recoil
  • Reduced muzzle rise
  • Faster sight return after each round fired
  • Wings on the comp body cover the gap between the slide and comp to provide a streamlined look
  • Sweet custom look that nobody else has

For Use In These Guns

  • For use with FNX-45 Tactical and FNP-45 pistols equipped with a factory threaded barrel

What’s Included

  • 1 ea. Muzzle Rise Amplitude Tamer (MRAT) Compensator
  • 1 ea. Captive-Spring Guide Rod Assembly
  • 2 ea. Brass Tip Set Screws
  • 1 ea. 1.8mL Vial of Thread Locker Fluid

Note: FDE finish color is currently Cerakote Magpul FDE H-267 (as of 07/01/2023, please check manufacturer’s website for current color configuration)

Additional information




Black, FDE

Item Type

Flash Hiders / Muzzle Brakes

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