Thompson M1A1 Full Auto Field Strip

Published on October 30, 2015
Duration: 2:55

This guide details the field stripping process for the Thompson M1A1 submachine gun, as demonstrated by Alex C. It covers the separation of the upper and lower receivers, removal of the bolt, recoil spring, and guide rod. The video emphasizes safety checks and highlights the M1A1's simplified design compared to earlier Thompson models.

Quick Summary

The Thompson M1A1 field strip begins by pressing the rear disassembly button, sliding the upper receiver forward while pulling the trigger to separate the halves. Key internal components removed include the buffer, recoil spring, guide rod, bolt, and cocking knob. Always perform a manual chamber check for safety before disassembly.

Chapters

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

Frequently Asked Questions

How do you start field stripping a Thompson M1A1?

To begin field stripping the Thompson M1A1, locate and press the disassembly button 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'll remove the buffer by pressing a rear button. Then, carefully extract the recoil spring and guide rod from the rear. Finally, pull the bolt back to remove the cocking knob, and then slide the bolt out of the receiver.

What safety precautions are essential before disassembling a Thompson M1A1?

Before any disassembly, it is crucial to perform a thorough safety check. Visually and physically confirm that the chamber is clear. As the Thompson M1A1 is an open-bolt firearm, a closed bolt usually indicates it's empty, but a manual check is always mandatory.

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

The Thompson M1A1 is a simplified, straight blowback version compared to earlier models like the Thompson 1928, which often utilized the Blish principle for locking and were compatible with drum magazines. The M1A1 focuses on easier production and maintenance.

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