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PMM Barrel and Compensator Combos for Walther PDP (polymer frame)

Original price was: $360.00.Current price is: $300.00.

Would You Like An Extra Shim Kit?

PMM JTTC "Muschi" Mounting Block

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By completing the purchase of a threaded barrel, you agree to abide by the laws of your state of residence. Per our terms of service, you are responsible for knowing and following all applicable Federal, State, and Local laws and regulations. If you are unsure of your local and state laws and regulations, please call your local law enforcement prior to ordering.

Order total:

Earn up to 300 Points.

Product Details

Includes:

1x PMM Compensator for Walther PDP (polymer)

  • Ultra Comp: 7075 Aluminum finished in type III class 2 hardcoat black anodize. Adds approximately 1″ to overall length.

OR

  • Micro Comp: 4140 steel finished in Black DLC. Adds approximately 0.600″ to overall length.

1x PMM Threaded Barrel

  • Material: 416 Stainless Steel heat treated to 38-42 HRC
  • Rifling: Standard
  • Twist: 1/10
  • Caliber: 9mm
  • Coating: Black Diamond Like Coating (DLC)

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

Optional 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.

Compatibility:

  • PDP Compact Series
  • PDP Full-size Series
  • PDP F-Series

NOT COMPATIBLE with:

  • PDP Steel Frame
  • Non-PDP Series Pistols

Barrel Compatibility:

  • PMM Micro Comp for PDP
  • PMM Ultra Comp for PDP
  • NOT compatible with any other device or suppressor

 

PMM Recoil Spring Recommendation:

Our ultra comp for the PDP was designed around the factory spring, but you may want to change it out. We recommend not going any lighter than 15 lbs.

We personally like and recommend the ZR Tactical Solutions PDP Captured Guide Rod. It is also compatible with the ZR Tactical Solutions PDP Ultra Mass Guide Rod.

 

FAQ:

Q: What size do I choose?

A: We do not include the thread length in our length options– 4″ is compatible with a slide with a 4″ unthreaded barrel, or 4.6 factory threaded barrel. 4.5″ is compatible with a slide with a 4.5″ unthreaded barrel, or a 5.1″ factory threaded barrel.

 

Q: Can I buy just the micro or ultra comp?

A: Short answer, no. The barrel and comp are proprietary to one another. Due to the thread depth in the comp and the length of thread on the barrel, our barrel and comp can only be used together.

 

 

Size Guide:

Please order based off of slide length/ unthreaded barrel length.

3.5″ is compatible with the PDP F 3.5″.

4″ is compatible with a slide with a 4″ unthreaded barrel, or 4.6 factory threaded barrel.

4.5″ is compatible with a slide with a 4.5″ unthreaded barrel, or a 5.1″ factory threaded barrel.

5″ is compatible with a slide with a 5″ unthreaded barrel.

 

Flush Fit:

To achieve a flush fit look you will need a 4″ PDP slide and a 5″ full length frame paired with our 4″ ultra flat-faced barrel and comp.

A 4.5″ PDP slide and a 5″ full length frame with our 4.5″ micro barrel and comp will hang past the frame by approximately .100″.

Please note, a 3.5″ slide will only function on a 3.5″ frame, so not there are no flush fit options.

For flush fit, skip to minute six of the video below.

Flatface VS Bullnose

Install for Ultra

 

Install for Micro

 

Ammo Recommendations:

115gr:

Federal American Eagle

Speer Lawman

Wolf

Remington UMC

Sig Sauer

Fiocchi

Magtech

124gr:

Blazer

Speer Lawman

Federal American Eagle

Sig Sauer

Winchester

PMC

Remington UMC

147gr:

Most ammo will run, but you will see less performance due to a lack of velocity

 

Ammo to stay away from:

Blazer 115

Winchester White Box 115

Armscor 115

PMC 115

All reloads or reman ammo

PMM Disclaimer:

PMM reserves the right to make esthetical design changes. While we try to accurately represent our current product offerings’ designs, there may be some esthetical variation from the product posted on this page and the product you receive.

Additional information

Length (Factory Unthreaded Barrel Length)

3.5" barrel, 4" barrel, 4.5" barrel, 5" barrel

Compensator

Ultra, Ultra Flat-Face, Micro

17 reviews for PMM Barrel and Compensator Combos for Walther PDP (polymer frame)

  1. James (verified owner)

    The ultra comp on my PDP is one of the softest shooting guns I’ve ran. And the return to zero is immediate, so follow up shots are stupid fast.

    Outside of performance Parker mountain deserves credit, this barrel is flawless in the machining and fit. Definitely a match grade barrel

  2. Gaetano Naimo (verified owner)

    I ran the single port comp on my PDP as soon as it came out. I was impatiently waiting for the Ultra to be released. I WAS NOT disappointed. The PDX is my favorite pistol and I love it. PMM makes an incredible product and I’m happy to support a small business!

  3. DANIEL Potempa (verified owner)

    I’ve wanted the Ultra Comp for all of my PDP’s ever since I put the single port on my first PDP. The single port was smooth. Since I already had the Ultra Comp for my Sig P320, I always thought the Ultra Comp would put the PDP over the top…and my guess was right! I love the flat face, with a 4″ slide, sitting on top of my 5″ frame. It it sooooo smooth and when reacquiring the target, my sight barely leaves the window (when shooting with red dots). This design just flat out works! I even bought the Glock Ultra Comp version (instead of the radian), because it just works better…and a better value!

  4. Josh McOmber

    Parker Mountain Machine (PMM) Review – PDP Double Comp Barrel Combo

    I run the PMM double comp barrel combo on my Walther PDP Pro X FS, and it’s hands down my favorite handgun setup. PMM’s craftsmanship and performance are unmatched, making their products a staple in our arsenal at Mantis Strategic Defense. We run their barrels and compensator combos on both our Glock and Walther platforms, and I’ve recently added their +4 mag base pads to the mix for both platforms as well. Everything they produce is top-tier.

    What really sets PMM apart, though, is their communication and customer service. They go beyond being just a company—they make you feel like a valued friend. Whether it’s answering questions, helping you try out gear, or just hanging out at events like Ohio Range Day, PMM is always approachable, knowledgeable, and willing to help.

    Our company has a lot of respect for PMM, and we actively recommend their products to our clients. You’ll always find something from PMM with us on the range, and we’re excited to see this smaller company continue to grow and dominate the industry. They’ve earned our trust and loyalty. Highly recommend! 🤙🏼

  5. mr.lee.young74 (verified owner)

    I purchased the 4” Ultra Barrel and Comp Combo for my poly PDP. Got a chance to run it during a class and loved it. I will definitely pickup another combo for a backup setup.

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