PMM Micro Barrel and Compensator Combo for Sig P365/365XL With Muschi


Earn up to 360 Points.

Product Details

PLEASE ENSURE YOU CHOOSE THE CORRECT BARREL LENGTH! Choose the same length as your slide!


Size Guide:

P365 (3.1″):

  • P365
  • P365X
  • P365 SAS

P365XL (3.7″):

  • P365XL
  • P365-XMACRO
  • P365-XMACRO X-Series

NOT Compatible:

  • P365-XL COMP
  • P365-AXG Legion


Please note, PMM barrels for the P365 are non LCI. If your slide has a loaded chamber indicator, you will need to remove it prior to installing our barrel and comp.



1x PMM Compensator for 9mm P365

  • 4140 PH Stainless Steel finished in Black DLC
  • 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.

1x PMM Threaded Barrel

  • 416R Stainless Steel finished in DLC
  • Non-LCI

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
  • Aluminum Shim Alignment Rod

1x Muschi Mounting Block


Note: Threaded pistol barrels are not legal in all areas. It is your responsibility to check your local laws before ordering a threaded barrel.  You also understand and agree that all firearms and firearms related activities are potentially dangerous if handled/conducted improperly and can pose risks and hazards to yourself and others, which may result in property damage, serious injury or death.



Flush Fit:

In order to achieve a flush fit you will need a grip with an extended dustcover. A p365 slide on a p365XL frame will not be flush. A p365 slide on the Sig P365-XMacro Grip module will be flush. For flush fits utilizing after-market grip modules, please refer to the manufacturers fitment guide.


Recoil Reduction:

The PMM p365 micro comp and barrel was designed to work with most factory loaded ammunition and yield a 30-40% reduction in muzzle climb with 115gr ammo

PMM Holster Recommendation:

PMM suggests using high quality holster manufacturers and not ones who skimp on material and care more about marketing.. We have great success with T-Rex Arms and Tier 1 Concealment.
T-Rex Arms also has a “threaded barrel” option on its holster builders and this option will cover our Micro comps perfectly.

Cascadia Concealment 


Tier 1


Active Retention (Level 2 & 3) Duty Holsters (Namely Safariland):

PMM Recommendation- RDR Gear





P365 Micro JTTC & Barrel- American Eagle 124


Micro comps and ultra comps cannot be purchased for use with other threaded barrels. The comp and barrel are proprietary to one another. Likewise, PMM proprietary barrels are only for use with the proprietary comp, and cannot be used with suppressors or other muzzle devices.

Additional information

P365 Size (Platform)

P365/P365X (Non-LCI), P365XL (LCI), P365/ P365X, P365XL

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