Gyrojet Carbine, Mark 1 Model B

Published on August 27, 2015
Duration: 7:23

Ian McCollum of Forgotten Weapons provides an expert-level review of the extremely rare Gyrojet Carbine, Mark 1 Model B. He details its unique rocket-propelled ammunition, the historical context of MB Associates, and the technical specifications that differentiate it from conventional firearms. The video covers its operational mechanics, including the internal magazine and cocking system, and touches upon the legal ramifications of its caliber post-1968 Gun Control Act.

Quick Summary

The Gyrojet Carbine Mark 1 Model B is a rare 'rocket rifle' developed by MB Associates, firing 13mm projectiles with built-in rocket fuel. Its 18-inch barrel improved accuracy over the pistol variant. Post-1968 Gun Control Act regulations led to the 12mm Mark 2, though original 13mm models are now ATF-exempt.

Chapters

  1. 00:00Introduction to Gyrojet Carbine
  2. 00:45MB Associates Company History
  3. 01:28Rocket Propulsion Mechanism Explained
  4. 02:14Carbine vs. Pistol Accuracy Differences
  5. 03:20Legal and Caliber Evolution (13mm vs 12mm)
  6. 04:44Controls and Internal Magazine Operation
  7. 06:01Production Numbers and Conclusion

Frequently Asked Questions

What makes the Gyrojet Carbine Mark 1 Model B unique?

The Gyrojet Carbine Mark 1 Model B is unique because it fires rocket-propelled projectiles, not conventional bullets. Each projectile contains its own fuel and stabilizes via rear-facing jet vents, making it a 'rocket rifle'.

Who developed the Gyrojet firearms?

MB Associates, founded in 1960 by Bob Mainhardt and Art Biehl, developed the Gyrojet series of rocket-firing firearms, including pistols and carbines. They initially focused on rocket flare launchers.

What are the key technical specifications of the Gyrojet Carbine Mark 1 Model B?

The Gyrojet Carbine Mark 1 Model B features a 13mm rocket projectile, an 18-inch barrel, and a 6-round internal fixed magazine. Its action is rocket-propelled and semi-automatic.

How did the 1968 Gun Control Act affect Gyrojet firearms?

The 1968 Gun Control Act classified firearms over .50 caliber as 'destructive devices'. This led MB Associates to develop the 12mm Mark 2 Gyrojet, while the original 13mm Mark 1s became ATF-exempt.

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