MP-28: Hugo Schmeisser Improves the MP18

Published on August 22, 2017
Duration: 9:11

This guide details the field stripping process for the MP-28,II submachine gun, as demonstrated by Ian McCollum. It covers accessing the bolt and recoil spring by pivoting the receiver open. The video highlights the unique large-diameter recoil spring system.

Quick Summary

The MP-28,II, developed by Hugo Schmeisser and produced by Haenel, is an improved version of the MP-18,I. Key advancements include a double-stack, single-feed box magazine, selective fire capability (semi/full auto), and a 1,000-meter tangent rear sight. Field stripping involves pivoting the receiver open to access the bolt and unique large-diameter recoil spring.

Chapters

  1. 00:00Introduction to the MP-28,II
  2. 02:02Magazine Design Evolution
  3. 03:50Key Mechanical Improvements
  4. 04:10Visual Markings and External Features
  5. 05:14Disassembly and Internal Components
  6. 07:00Fire Selector Mechanism
  7. 08:10Conclusion and Legacy

Frequently Asked Questions

What are the key improvements of the MP-28,II over the MP-18,I?

The MP-28,II features a double-stack, single-feed box magazine, a selective fire system (semi and full auto), and an upgraded tangent rear sight adjustable to 1,000 meters, making it a more versatile and reliable firearm than its predecessor.

How is the MP-28,II field stripped?

Field stripping involves pivoting the receiver open. The bolt and recoil spring assembly can then be removed from the receiver tube. The MP-28,II uses a large-diameter recoil spring that fits directly into the receiver tube without a guide rod.

What is the function of the fire selector on the MP-28,II?

The MP-28,II has a cross-bolt fire selector button. 'D' signifies Dauerfeuer (full-auto), and 'E' signifies Einzelfeuer (semi-auto), allowing the operator to choose the firing mode.

Who developed the MP-28,II and who produced it?

The MP-28,II was developed by Hugo Schmeisser and produced by Haenel. It is an improvement on the earlier MP-18,I design.

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