The German WWII Standby: The MP38 and MP40 SMGs

Published on August 4, 2017
Duration: 15:31

This guide details the field stripping process for the German MP38 and MP40 submachine guns, as demonstrated by firearms expert Ian McCollum. It covers the mechanical steps for disassembly and reassembly, emphasizing the unique telescoping recoil spring system. The guide also highlights the safety redesign on later MP40 models and includes a crucial safety check before handling the firearm.

Quick Summary

The German MP38 and MP40 submachine guns, often confused, differ significantly in manufacturing. The MP38 features a milled receiver, while the MP40 utilizes a stamped sheet metal receiver for easier and cheaper mass production. Both share a similar design lineage tracing back to the MP18, with notable features like a telescoping recoil spring assembly and a single-feed magazine.

Chapters

  1. 00:00Introduction to MP38 and MP40
  2. 00:28Design Lineage and Magazine Issues
  3. 02:04Manufacturing: Milled vs. Stamped
  4. 04:06MP38 Specific Features
  5. 07:26MP40 Simplification
  6. 09:12Disassembly and Internal Mechanics
  7. 11:17Safety Redesign

Frequently Asked Questions

What are the main differences between the German MP38 and MP40 submachine guns?

The primary distinction lies in their manufacturing. The MP38 uses an expensive milled receiver, while the MP40 employs a more economical stamped sheet metal receiver, reflecting wartime production needs and simplification efforts.

How do you field strip the MP38 and MP40?

Field stripping involves unloading the firearm, rotating a receiver plunger, twisting the receiver off the body, and then removing the bolt and telescoping recoil spring assembly. Reassembly is the reverse process.

What was the purpose of the hook under the MP38's barrel?

The hook, also known as a resting bar or vehicle hook, was designed for German mechanized troops. It allowed them to secure the submachine gun over the side of vehicles like half-tracks to prevent accidental recoil into the cabin.

Were there safety improvements made to the MP40?

Yes, later models of the MP40 (introduced around 1942) featured a redesigned two-piece push-pull safety bolt handle. This improved safety mechanism locked the bolt in the forward position, reducing the risk of accidental discharge.

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