Walther MP-PP Prototype

Published on February 25, 2015
Duration: 7:37

This guide details the disassembly and highlights key features of the Walther MP-PP prototype, as demonstrated by Ian McCollum. It covers the field stripping procedure via the trigger guard, the straight blowback action, and notable features like the loaded chamber indicator, slide hold-open, and shoulder stock slot. The information is presented with high authority, drawing on deep historical and technical knowledge.

Quick Summary

The Walther MP-PP prototype is a rare 1928 military pistol variant, larger than the standard PP model and chambered in 9mm Steyr (9x23mm) for a Chilean contract. It features a straight blowback action, DA/SA trigger, loaded chamber indicator, slide hold-open, and a slot for a shoulder stock. Field stripping is accomplished by pulling down the trigger guard.

Chapters

  1. 00:00Introduction: Walther MP-PP Prototype
  2. 00:41Walther PP vs. MP Prototype Comparison
  3. 01:05Historical Context: German Army Pistols
  4. 01:47Chilean Contract & 9mm Steyr Caliber
  5. 02:42Ergonomics and Size Analysis
  6. 03:24Controls and Features Overview
  7. 04:34Field Stripping and Internals
  8. 05:19Loaded Chamber Indicator & Slide Hold-Open
  9. 06:09Reassembly and Conclusion

Frequently Asked Questions

What is the Walther MP-PP prototype?

The Walther MP-PP prototype is a rare 1928 pistol designed by Walther, intended as a military variant. It's larger than the standard PP model and was chambered in 9mm Steyr (9x23mm), originally for a Chilean contract. Ian McCollum of Forgotten Weapons provides an expert overview.

How is the Walther MP-PP prototype field stripped?

According to the Forgotten Weapons video, the Walther MP-PP prototype is field stripped by pulling down the trigger guard. This reveals the internal straight blowback mechanism, relying on slide mass and recoil spring weight.

What are the notable features of the Walther MP-PP prototype?

Key features include a straight blowback action, a DA/SA trigger, a loaded chamber indicator pin, a magazine-actuated slide hold-open, an 8-round magazine with witness holes, and a machined slot for a shoulder stock. It's chambered in 9mm Steyr.

What caliber is the Walther MP-PP prototype chambered in?

The Walther MP-PP prototype discussed by Ian McCollum is chambered in 9mm Steyr (9x23mm), not the more common 9x19mm Parabellum. This specific variant was manufactured for a Chilean contract in 1928.

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