Demro XF-7 Wasp - An Open Bolt Semiauto From the 70s

Published on June 1, 2018
Duration: 16:24

This guide details the field stripping process for the Demro XF-7 Wasp, a unique 1970s open-bolt semi-automatic carbine. It covers the removal of the stock, bolt, and recoil spring assembly, highlighting the integrated tools and the distinctive twisted recoil spring guide rod. The process is presented with a strong emphasis on safety, crucial for maintaining this historical firearm.

Quick Summary

The Demro XF-7 Wasp is a 1970s open-bolt, blowback, semi-automatic carbine known for its caliber conversion using M3 Grease Gun or Sten magazines. Its production ended after a 1983 ATF ruling restricted open-bolt designs, making it a collectible piece of firearm history.

Chapters

  1. 00:00Introduction to the Demro XF-7 Wasp
  2. 00:40Historical Context: 1970s Carbine Market
  3. 01:53Development History: Eagle and Fox Carbines
  4. 04:48Caliber Conversion and Magazine Compatibility
  5. 05:53Mechanical Operation and Safety Features
  6. 07:07Barrel Length and Adjustable Sights
  7. 07:57Folding Stock with Integrated Tools
  8. 09:19Field Stripping and Internal Components
  9. 11:15ATF Ruling and Production End
  10. 13:15Production Numbers and Collectability

Frequently Asked Questions

What makes the Demro XF-7 Wasp unique among firearms?

The Demro XF-7 Wasp is notable for its open-bolt, blowback, semi-automatic operation, a design common in the 1970s but later restricted. It also features integrated tools in its stock and caliber conversion capabilities using M3 Grease Gun or Sten magazines.

How did the ATF ruling affect the production of firearms like the Demro XF-7 Wasp?

In 1983, the ATF classified open-bolt semi-automatic firearms as easily convertible to machine guns. This ruling effectively ended the legal civilian production and sale of new firearms with this operating mechanism in the US.

What are the caliber conversion options for the Demro XF-7 Wasp?

The Demro XF-7 Wasp was produced in both .45 ACP and 9mm Parabellum. The .45 ACP variant utilizes M3 Grease Gun magazines, while the 9mm variant is compatible with Sten gun magazines.

What maintenance considerations are specific to the Demro XF-7 Wasp?

Key maintenance points include the potential degradation of the rubber buffer in the receiver and the unique twisted recoil spring guide rod, which also functions as the ejector. Regular cleaning and inspection are recommended.

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