The MP-40: History’s Most Infamous SMG

Published on May 24, 2022
Duration: 11:48

This review delves into the iconic MP-40 submachine gun, highlighting its historical significance as 'Hitler's street sweeper' during WWII. The video details its open-bolt firing mechanism, 9mm Luger caliber, and distinctive features like the wobbly under-folding stock and Bakelite components. It also covers the gun's controls, safety features, and field stripping process, emphasizing the importance of preserving historical firearms.

Quick Summary

The MP-40 submachine gun is chambered in 9mm Luger and operates via an open-bolt, blowback system. It features an under-folding stock, Bakelite components, and dual safety mechanisms including a charging handle lock and a bolt-hold notch.

Chapters

  1. 00:00Introduction to the MP-40
  2. 02:16Gun Overview and History
  3. 03:59Technical Operation: Open Bolt System
  4. 04:58Caliber and Magazines
  5. 05:18External Features: Stock and Bakelite
  6. 06:03Controls and Safety
  7. 07:30Disassembly and Internals
  8. 09:02Threaded Muzzle and Final Thoughts

Frequently Asked Questions

What caliber is the MP-40 submachine gun?

The MP-40 is chambered in 9mm Luger, which was the standard German sidearm cartridge during World War II. This caliber was also used in pistols like the Luger P08 and Walther P38.

How does the MP-40's open-bolt system work?

The MP-40 operates on an open-bolt, blowback system. When the weapon is cocked, the bolt stays to the rear. Pulling the trigger releases the bolt, which moves forward to chamber a round, fire it, and then cycle back to the open position.

What are some distinctive external features of the MP-40?

Key external features include its under-folding stock, which is known for being somewhat wobbly, and the use of Bakelite, an early plastic, for the lower receiver and handguard. It also has a threaded muzzle.

What safety mechanisms are present on the MP-40?

The MP-40 has two primary safety features. One is a push-in lock on the charging handle that prevents it from moving. The other is a notch on the rear of the bolt carrier that can hold the bolt open, similar to an HK slap.

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