Parker Mountain Machine Barrel/ Comp- Review

Published on October 9, 2021
Duration: 16:14

This review by Regular Guy Training LLC focuses on the Parker Mountain Machine (PMM) barrel and compensator system for Glock Gen 5 handguns. The presenter highlights PMM's innovative design that indexes the compensator over the slide and into the dust cover, preventing holster issues even if it comes loose. The installation is compared to a standard rifle muzzle device, utilizing spacers for precise alignment. Performance-wise, the single-port compensator is noted to reduce felt recoil impulse without significantly robbing energy, making it suitable for carry and duty use.

Quick Summary

The Parker Mountain Machine compensator for Glock Gen 5 handguns features a unique indexing design that locks into the slide and dust cover, preventing holster issues. It installs like a rifle muzzle device using spacers and effectively reduces recoil impulse for a flatter shooting experience without significantly increasing muzzle flash.

Chapters

  1. 01:08Introduction & PMM Barrel/Compensator
  2. 01:23Upcoming Classes & Patreon Support
  3. 02:07Compensator Considerations for Carry
  4. 03:03PMM Compensator Design & Gen 5 Compatibility
  5. 04:51Indexing Mechanism & Reliability
  6. 05:29Installation Process & Spacers
  7. 07:07Comparison to Other Compensator Designs
  8. 08:51Reliability & Carryability
  9. 09:14PMM Barrel Review
  10. 10:15Performance: Single Port Compensator
  11. 11:41Performance Questions: Energy & Effectiveness
  12. 11:59Compensator Effectiveness & Recoil Impulse
  13. 13:03Shooting in the Dark & Flash/Smoke
  14. 14:18Spring Down & Energy Robbing
  15. 15:14Functional Issues & Durability
  16. 15:31Summary & Recommendation
  17. 16:02Outro & Social Media Links

Frequently Asked Questions

What makes the Parker Mountain Machine compensator unique for Glock Gen 5 pistols?

The PMM compensator features an innovative design that indexes over the slide and into the dust cover. This ensures it stays timed correctly, preventing holster compatibility issues even if it becomes loose, a common problem with other compensator designs on Gen 5 Glocks.

How does the PMM compensator affect recoil impulse and shooting performance?

The single-port PMM compensator effectively reduces felt recoil impulse with various ammunition types, leading to a flatter shooting pistol. It helps manage muzzle flip without significantly robbing energy from the system, making it suitable for both practice and defensive use.

Is the PMM compensator difficult to install on a Glock?

Installation is straightforward, similar to mounting a rifle muzzle device. The PMM system uses a series of spacers to achieve precise alignment between the barrel and compensator, allowing for fine-tuning to ensure optimal fit against the slide.

Does the PMM compensator increase muzzle flash or cause other visual obstructions?

The compensator does not noticeably increase muzzle flash compared to a standard barrel. While there might be a slight increase in smoke under low-light conditions due to upward venting, it is not significant enough to impede vision.

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