Compensated FNX & FNX 45 Conversion


OWNER BARREL:  You send us your Tactical barrel and your slide…just $263

PURCHASED BARREL: We supply a NEW FNX Tactical barrel (NEW BARRELS currently out of stock)

FNX Extra Power Mag Spring (+$12.30)

Select qty below:

Required in certain restrictive states (like CA)

SKU: N/A Category:

In either the Tactical or Standard FNX models, we provide: 

  • Chambering to 460 Rowland®
  • Engraving in Deep Night Red to reflect the chambering
  • Polishing the slide breech face to enhance feeding
  • Two Modified Recoil Spring Assemblies Red-coded for 460 Rowland®, Yellow-coded for .45 ACP
  • Double Set-Screw Secured, Black Cerakoted 460 Rowland® Compensator Thread Pitch .578 x 28 to match barrel
  • A .460 Rowland® FNX Extra Power Magazine Spring to enhance reliable feeding
  • Instructions for your new .44 Magnum Power Handgun!
  • Once we receive your barrel you may expect to receive your Conversion within 10-15 business days...often sooner.

.460 Rowland® has redefined this exceptional State of the Art weapon by giving it…

  • TWICE the Range and Velocity…
  • Over THREE TIMES the Muzzle Energy…
  • Almost TWICE the Power at 150 YARDS as it originally had at the MUZZLE!!
  • True .44 Magnum Horsepower in this rugged, reliable and battle-tested .45 caliber semi-automatic handgun clearly makes it one of the very Best of the Best…Is Your FNX in .460 Rowland® the Most Powerful Gun on the Planet?







Additional information

Choose Barrel Option

Owner Barrel, NEW FNX TACTICAL BARREL (when purchasing a Conversion) : ($222.00)


Installing the FNX Tactical Conversion to .460 Rowland®


The Mighty .460 Rowland® ammunition delivers over three times the power of your standard .45 ACP ammunition.


So, how does your gun handle both?  And what do you need to do when shooting each?



Shooting the Mighty .460 Rowland®:

*Remove your magazine and check/double-check to ensure there is no round in the chamber.

Attach your 460 Rowland® Compensator 

  • Ensure your new barrel is in its proper “locked-up” position within the slide.
  • Screw the Compensator onto the barrel until it is close to the slide, but not actually touching it. Also, do not tighten the Compensator all the way to the end of the threads.
  • A small amount of blue thread locker may be used on the screws. Be prepared to move immediately to the next step.
  • The Compensator should not actually come in contact with the slide. A small space is normal and required.
  • The large vent openings in the Compensator must open straight-up in front of the slide.
  • Install your High-Power Recoil Assembly (marked with a RED dot)


Shooting .45 ACP Ammunition:

*Remove your magazine and check/double-check to ensure there is no round in the chamber.

  • Remove your 460 Rowland® Compensator(see below if you have used thread locker)
  • Screw on your Thread Protector 
  • Remove your High-Power Recoil Assembly (marked with a RED dot)
  • Install your Low-Power Recoil Assembly(marked with a YELLOW dot)

That’s all there is to it!…But we think you’ll keep your gun in .460 Rowland® most of the time​!


NOTE: If you did not elect to send us your slide, you will need to polish its breech face.

This is a relatively simple, but important, part of Converting your FNX. It will assist with reliable feeding. Visit the VIDEOS page for helpful instructions.



How to Remove your Set-Screw Secured Compensator:

  • Back out the allen-head set screws several rotations until you are certain they are not in contact with the barrel threads…gentle heat with a small propane or butane torch will loosen the screws, if necessary.
  • Using a wrench with protective padding around it, apply a firm, steady counter-clockwise pressure to unscrew the Comp from the barrel.