USAS-12 Combat Shotgun

Published on December 7, 2015
Duration: 11:52

This guide details the field stripping process for the USAS-12 combat shotgun, as demonstrated by Ian McCollum. It covers the removal of major components, identification of the gas system, and the unique long guide rod. The video highlights the weapon's mechanical intricacies and its derivation from the Daewoo K2 rifle. Expert analysis provides insight into its design and legal classification.

Quick Summary

The USAS-12 is a 12-gauge, gas-operated combat shotgun developed by Maxwell Atchisson and manufactured by Daewoo Precision Industries. It features a long-stroke piston system, a rate of fire between 400-450 RPM, and uses 10-round box or 20-round drum magazines. In the US, it's classified as a 'destructive device', limiting its availability.

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
  6. 04:19Field Stripping
  7. 06:05Internal Mechanism
  8. 07:51Receiver and Sights
  9. 09:11Stock and Guide Rod
  10. 10:12Lower Receiver and Conclusion

Frequently Asked Questions

What is the USAS-12 combat shotgun?

The USAS-12 is a full-auto combat shotgun developed in the late 1980s. It's a 12-gauge, gas-operated weapon known for its high rate of fire and often seen in video games but rarely in real life due to its legal classification.

How is the USAS-12 legally classified in the United States?

In the US, the USAS-12 is classified as a 'destructive device' by the Treasury Department. This classification is due to its bore size exceeding .50 caliber and its lack of a recognized sporting purpose, significantly limiting its commercial availability.

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

The USAS-12 is a 12-gauge, gas-operated shotgun with a long-stroke piston system. It fires 2 3/4 inch shells and can use 10-round box or 20-round drum magazines, boasting a rate of fire between 400-450 RPM.

Who developed the USAS-12 and where was it manufactured?

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

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