Q&A Mk47 Edition

Published on March 26, 2021
Duration: 6:51

This Q&A session from CMMG addresses specific questions about the Mk47 platform, clarifying receiver compatibility, upgrade options, and performance with various ammunition types. It highlights the need for modifications like adjustable gas blocks for subsonic 7.62x39mm and offers tips for reducing gas blowback when suppressed.

Quick Summary

To reduce gas blowback when shooting a suppressed CMMG Mutant, an adjustable gas block is highly recommended. A practical tip is to apply RTV sealant to the charging handle channel behind the upper receiver interface, creating a more effective seal against escaping gas.

Chapters

  1. 00:01Intro: Mk47 Q&A
  2. 00:35Optic Recommendations for Mk47
  3. 01:16Mk47 100 vs 300 Series Receivers
  4. 01:53AR Conversion Kits for 7.62x39mm
  5. 02:31Resolute 300 Mk47 Upgrades & Specs
  6. 03:34Subsonic Ammo Mods for Banshee Mk47
  7. 04:14Mk47 300 Series Barrel Lengths
  8. 04:40Mk47 Gas System: DI vs. Radial Delay
  9. 05:07Limiting Gas Blowback on Suppressed Mutant
  10. 05:41Future 5.45x39mm Mutant?
  11. 06:16Outro: Mk47 Q&A Edition

Frequently Asked Questions

What is the difference between CMMG Mk47 100, 200, and 300 series receivers?

Internally and in terms of furniture, the 100, 200, and 300 series Mk47 models do have differences. However, the actual receiver itself is the same across all three series. The variations typically lie in the trigger, buttstock, and other furniture components.

Do I need to modify my CMMG Mk47 to run subsonic 7.62x39mm ammunition, especially with a suppressor?

Yes, you will likely need to make modifications. Running subsonic 7.62x39mm can be tricky. Typically, you'll want to install an adjustable gas block and potentially open up the gas port to ensure the firearm cycles reliably and functions properly with this type of ammunition.

How can I reduce gas blowback when shooting a suppressed CMMG Mutant?

An adjustable gas block is one of the most effective ways to mitigate gas blowback. A personal trick involves applying a small amount of RTV sealant to the charging handle channel, just behind where it interfaces with the upper receiver, to create a better seal.

What are the muzzle device threading and handguard pattern for the CMMG Mk47?

The CMMG Mk47 features an LR308 high pattern for its handguard. The muzzle device threading is 5/8x24, which is a common size for many rifle muzzle attachments, allowing for a wide range of compatibility.

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