USAS-12 Combat Shotgun

Published on December 7, 2015
Duration: 11:52

The USAS-12 is a rare, full-auto 12-gauge combat shotgun developed in the late 1980s by Maxwell Atchisson and manufactured by Daewoo. Its classification as a 'destructive device' in the US significantly limited its market availability. The design features a long-stroke gas piston system, M16-style sights, and a unique long guide rod running through the gas piston.

Quick Summary

The USAS-12 is a rare, full-auto 12-gauge combat shotgun developed in the late 1980s. In the US, it's classified as a 'destructive device' due to its bore size and lack of sporting purpose, limiting sales. It features a long-stroke gas piston system and M16-style sights.

Chapters

  1. 00:00Introduction to the USAS-12
  2. 00:23Development History
  3. 01:24Technical Specifications
  4. 01:52US Legal Status
  5. 02:40External Controls & Ambidexterity
  6. 04:19Field Stripping Process
  7. 06:05Internal Gas Piston Mechanism
  8. 07:51Receiver and Sights
  9. 09:11Stock and Guide Rod Design
  10. 10:12Lower Receiver and Conclusion

Frequently Asked Questions

What is the USAS-12 combat shotgun?

The USAS-12 is a rare, full-auto 12-gauge combat shotgun developed in the late 1980s. It's known for its appearance in video games and its unique design, including a long-stroke gas piston system and M16-style sights.

Why is the USAS-12 considered a 'destructive device' in the US?

In the United States, the USAS-12 is classified as a 'destructive device' by the Treasury Department because its bore diameter exceeds .50 caliber and it lacks a recognized sporting purpose, significantly limiting its commercial availability.

What are the key technical specifications of the USAS-12?

The USAS-12 is a gas-operated, 12-gauge shotgun with a rate of fire between 400-450 RPM. It uses 10-round box magazines or 20-round drums and features a long-stroke gas piston system.

Who developed the USAS-12 and who manufactured it?

The USAS-12 was developed by Maxwell Atchisson as a follow-up to his AA-12. The Gilbert Equipment Company partnered with Daewoo Precision Industries in South Korea for its manufacturing.

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