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PMM FNH 509/509 Tactical/509 Compact Tactical Compensator



Would You Like An Extra Shim Kit?

Yes (No Loctite 272)
Yes (With Loctite 272)

PMM JTTC "Muschi" Mounting Block

Product price: $100.00
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Product Details

PMM is proud to announce our new line of pistol compensators.


The PMM Compensator uses a proprietary mounting system much like what is found on all modern rifles utilizing a combination of shims and proper timing of the compensator in relation to the Pistol slide.

Additionally, the PMM compensators utilize a single port design at the 12 O’clock position which maximizes the effectiveness of the compensator in keeping the muzzle of the pistol down and allows the slide to “track” faster and more accurately for follow up shots.

During testing the PMM compensators were designed to work with most factory loaded ammunition but will yield the best results with a +P or Nato spec cartridge. We have adapted our designs to integrate with and complement the design of your pistol so no longer does a compensator have to look like an afterthought slapped on the end of your pistol, Rather it Delivers unmatched performance and looks.




1 x FN 509 Compensator


1 x Shim Kit:


4 x 0.010″ Shim

2 x 0.005″ Shim

1 x 0.002″ Shim

1 x 0.05mL Vial Loctite 272


*If ordering a 13.5×1 LH Metric compensator, your shim kit will include a PMM Metric Shim Alignment Rod. These are only necessary for metric barrels.*


  • 7075 Aluminum finished in a type 3 class 2 Black hardcoat anodize.
  • No set screws, mounts like a muzzle device on a rifle.
  • Captured design ensures that even if your comp comes loose it will not come off or impede function.
  • Designed around the FN factory threaded barrels (1/2×28) but will work with others that have the same threads. (Gap may vary)
  • Technology born and improved upon from our PMM X-Comp pistol.
  • PMM FN509 “Moushi” Mounting Block NOT Included. Available Under Options



Download PDF pmm_just_the_tip_compensator_installation_instructions__1_.pdf




Images below are of our PMM “MUSCHI” Mounting Block, This product can be found on the main page for your pistol manufactures COMP.

Additional information

Weight N/A


144 reviews for PMM FNH 509/509 Tactical/509 Compact Tactical Compensator

  1. Stacy W.

    The compensator is perfect! I did not even have to use any shims on either or the two I have because they lined up perfect ( not sure if I just got lucky ). This really completes the pistol and gives it the look I was going for as well as the performance enhancements I was hoping for. I would suggest no other compensator for the FN 509, as I tried the others on market ( 1st unfortunately! ). I have purchased both the black and FDE models to match the colors of each of my 509 Tacticals with same results on both. You will be happy with this compensator, no question!

  2. William P.

    Great product. Simple and easy installation, looks great!

  3. Gary C

    Worth every penny, fits like a glove. Dont wait, just order one!

  4. Ben I.

    Perfect fit and look. The spacer was handy.
    Thanks guys!

  5. David L.

    Sick took a while I guess you can’t rush perfection love it looks and works great

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