MKb-42(W) - The Sturmgewehr That Never Was

Published on July 6, 2018
Duration: 26:31

This guide details the disassembly and reassembly process for the rare MKb-42(W) rifle, a Walther prototype Sturmgewehr. Expert Ian McCollum demonstrates how to field strip the weapon, highlighting its unique stamped sheet metal construction and complex annular gas piston system. The video emphasizes careful handling of components during disassembly and reassembly to maintain the integrity of this historical firearm.

Quick Summary

The MKb-42(W) was a prototype Sturmgewehr developed by Walther, featuring an annular gas piston and stamped receiver. It failed German military trials due to excessive complexity, cost, and lower reliability compared to the Haenel design, with only about 200 units ever produced.

Chapters

  1. 00:00Introduction to MKb-42(W)
  2. 00:43Historical Context & Development
  3. 02:50Mechanical Overview
  4. 03:17External Controls & Markings
  5. 04:58Magazine Features
  6. 05:53Sights and Optics
  7. 08:19Disassembly Process
  8. 12:22Gas System & Bolt Carrier
  9. 16:40Safety & Out-of-Battery Protection
  10. 21:04Trial Failure & Rarity

Frequently Asked Questions

What was the MKb-42(W)?

The MKb-42(W) was a prototype select-fire rifle developed by Walther as a competitor to Haenel's design for the German Sturmgewehr program. It featured an innovative annular gas piston system and a stamped sheet metal receiver but ultimately failed military trials.

Why did the MKb-42(W) fail military trials?

The MKb-42(W) was deemed too complex, expensive to manufacture, and less reliable compared to its competitor, the Haenel MKb-42(H). These factors led to its rejection in favor of the Haenel design, which evolved into the Sturmgewehr 44.

What are the key mechanical features of the MKb-42(W)?

Key features include its gas-operated action with an annular piston surrounding the barrel, a rotating bolt system, and a receiver constructed from stamped sheet metal. It also incorporated a specific magazine hold-open feature and a safety mechanism to prevent out-of-battery firings.

How many MKb-42(W) rifles were produced?

Only a very limited number of MKb-42(W) rifles were produced, estimated at around 200 units. Most surviving examples were captured by American forces at the Walther factory after the war.

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