Model 1927 Thompson Semi Automatic Carbine

Published on March 13, 2019
Duration: 8:20

This entry details the rare Model 1927 Thompson Semi-Automatic Carbine, presented by Ian McCollum. It covers its historical context, manufacturing modifications from the Model 1921, unique NFA classification as a registered machine gun operating in semi-automatic mode, and its rarity. The information is derived from expert analysis and visual evidence, highlighting key markings and internal mechanisms.

Quick Summary

The Model 1927 Thompson is a rare firearm, legally classified as an NFA-registered machine gun despite its semi-automatic-only function. Originally modified from Model 1921s, these guns feature unique markings and internal fire control group changes, making them historically significant and highly sought after.

Chapters

  1. 00:00Introduction to the Model 1927 Thompson
  2. 00:30Historical Rationale for Semi-Auto
  3. 01:15Manufacturing and Modifications
  4. 02:58Features and NFA Status
  5. 03:51Internal Mechanics Comparison
  6. 05:19Rarity and Market Confusion

Frequently Asked Questions

What makes the Model 1927 Thompson unique?

The Model 1927 Thompson is unique because it's an NFA-registered machine gun that was specifically manufactured to function only in semi-automatic mode, a modification requested by security agencies in the 1920s.

How were Model 1927 Thompsons manufactured?

Original Model 1927s were modified from existing Model 1921 submachine guns. Auto-Ordnance Corporation altered the fire control group and restamped the receiver markings to denote 'Model of 1927' and 'Semi-Automatic Carbine'.

What is the NFA status of the Model 1927 Thompson?

Despite being semi-automatic, the Model 1927 Thompson is legally classified as a machine gun under NFA regulations because it uses a machine gun receiver. It requires proper NFA registration.

Are Model 1927 Thompsons common?

No, original Model 1927 Thompsons are extremely rare, with only an estimated 100 to 150 units produced. They are often confused with modern semi-automatic replicas like the 1927A1.

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