Thompson M1A1 Full Auto Field Strip

Published on October 30, 2015
Duration: 2:55

This video provides a detailed field strip guide for the Thompson M1A1 submachine gun. It covers the safety check, receiver separation, and internal component removal, highlighting the M1A1's simplified straight blowback design compared to earlier models. The demonstration emphasizes proper disassembly techniques for this iconic firearm.

Quick Summary

To field strip the Thompson M1A1, first perform a safety check. Press the rear disassembly button, then slide the upper receiver forward while pulling the trigger to separate the halves. Remove the buffer, recoil spring, guide rod, and bolt sequentially.

Chapters

  1. 00:00Introduction to the Thompson M1A1
  2. 00:58Safety Check Procedure
  3. 01:15Receiver Separation Steps
  4. 01:32Internal Component Removal
  5. 02:09Design Summary & Conclusion

Frequently Asked Questions

How do you begin field stripping the Thompson M1A1?

To start field stripping the Thompson M1A1, press the disassembly button located at the rear of the receiver. Then, slide the upper receiver forward while simultaneously pulling the trigger to release bolt tension and separate the upper and lower receiver halves.

What are the key internal components removed during a Thompson M1A1 field strip?

After separating the receivers, you remove the buffer, recoil spring, guide rod, and finally the bolt by pulling the cocking knob back. Careful handling ensures all parts are accounted for during disassembly.

Is the Thompson M1A1 an open-bolt or closed-bolt firearm?

The Thompson M1A1 operates as an open-bolt firearm. This means the bolt is held to the rear on an empty chamber when cocked. A closed bolt typically indicates the firearm is unloaded, but a manual check is always essential for safety.

What distinguishes the Thompson M1A1 from earlier Thompson models like the 1928?

The M1A1 is a simplified, straight blowback design, whereas earlier models like the 1928 often used the Blish principle. Additionally, the M1A1 typically uses stick magazines and lacks the drum magazine compatibility of the 1928 'gangster' models.

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