Testing Enhanced Bolt Carrier Group w/ Suppressed Machine Gun

Published on December 8, 2017
Duration: 5:31

This video tests an ALAN TAC enhanced bolt carrier group (BCG) and a Dead Air Sandman K suppressor on a machine gun. The enhanced BCG is designed to reduce gas blowback when suppressed. The Sandman K, a short suppressor, performed well. The test involved firing 5.56 NATO and 300 Blackout (both supersonic and subsonic) through a 16-inch carbine and a 10.5-inch 300 Blackout upper. The enhanced BCG showed good resilience to fouling after full-auto suppressed fire.

Quick Summary

The ALAN TAC enhanced bolt carrier group aims to reduce gas blowback during suppressed fire. Tested on a machine gun with a Dead Air Sandman K suppressor, it performed well with 5.56 NATO and supersonic 300 Blackout, though subsonic 300 Blackout had chambering issues. The BCG cleaned up reasonably well after full-auto suppressed use.

Chapters

  1. 00:02Introduction
  2. 00:11ALAN TAC Enhanced BCG
  3. 00:34Dead Air Sandman K Suppressor
  4. 01:07Firearm Setup (300 BLK Upper)
  5. 01:205.56 NATO Test
  6. 01:57300 Blackout Test (Supersonic)
  7. 02:36300 Blackout Test (Subsonic)
  8. 03:43BCG Condition Post-Test
  9. 04:10BCG Cleaning
  10. 04:52Conclusion

Frequently Asked Questions

What is the purpose of an enhanced bolt carrier group like the ALAN TAC model?

The ALAN TAC enhanced bolt carrier group is designed with modifications, such as a slightly altered port, to help alleviate gas pressure and reduce blowback when shooting suppressed, offering an improvement over standard BCGs, though not as effective as an adjustable gas block.

How did the Dead Air Sandman K suppressor perform on a machine gun?

The Dead Air Sandman K, a short suppressor, performed exceptionally well on the machine gun, handling full-auto fire without issues and providing good sound suppression for its compact size.

Were there any issues encountered during the suppressed machine gun test?

Yes, the subsonic 300 Blackout ammunition experienced chambering problems, failing to go fully into battery on multiple occasions. This issue was not observed with supersonic 5.56 NATO or 300 Blackout ammunition.

How did the enhanced bolt carrier group hold up after full-auto suppressed firing?

The ALAN TAC enhanced bolt carrier group showed some fouling after the test but cleaned up relatively easily with a rag, indicating good resilience and a manageable cleaning process even after extensive suppressed full-auto use.

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