ZB47: A Truly Weird Czech SMG

Published on December 23, 2024
Duration: 23:04

This guide details the disassembly of the ZB47 submachine gun, focusing on its unique feed mechanism. Expert Ian McCollum demonstrates how to access the internal components by camming the upper receiver forward, revealing the bolt, rotating feed lugs, and the innovative round counter within the magazine. The ZB47, designed by Václav and František Holek, was a Czech prototype noted for its complexity.

Quick Summary

The ZB47 submachine gun, designed by Václav and František Holek, is noted for its unique 72-round straight magazine and innovative feed mechanism that uses rotating lugs to lift cartridges 90 degrees into the open bolt. Developed in Czechoslovakia, it underwent trials in 1947 but was not adopted due to complexity.

Chapters

  1. 00:00Introduction to the ZB47
  2. 00:48Historical Context and Trials
  3. 01:52Unique Magazine and Feed System
  4. 02:34Markings and Variants
  5. 04:43Ammunition Challenges
  6. 07:25Controls and Operation
  7. 08:41Disassembly and Internal Mechanics
  8. 15:57Safety Mechanisms
  9. 16:41Round Counter Feature
  10. 20:21Trial Results and Legacy

Frequently Asked Questions

What makes the ZB47 submachine gun unique?

The ZB47 is unique for its innovative feed mechanism, which uses rotating lugs to lift cartridges 90 degrees into the bolt from a straight, parallel 72-round magazine. It also features an open-bolt action and a distinctive appearance.

When and where was the ZB47 developed?

Development of the ZB47 began in the late 1930s, but it was realized and entered Czech military trials in July 1947. It was manufactured by Zbrojovka Brno in Czechoslovakia (now the Czech Republic).

What were the main challenges with the ZB47's magazine?

The ZB47's exceptionally long 72-round straight magazine experienced feeding issues with standard tapered 9x19mm Parabellum ammunition. It was designed for special cylindrical ammunition to ensure reliable feeding.

What is the operational mode of the ZB47?

The ZB47 operates in full-auto only. The selector markings indicate '0' for safe and '72' for full-auto fire; there is no semi-automatic mode available.

More Gunsmithing & DIY Videos You Might Like

More from Forgotten Weapons

View all →