CZ Model S Prototype (1929)

Published on April 18, 2016
Duration: 14:36

This guide details the disassembly and operational features of the rare CZ Model S prototype from 1929, as demonstrated by Ian McCollum. It covers the unique hinged receiver, the gas-operated tilting bolt mechanism, and the integrated bolt release. The video highlights the rifle's historical context and design lineage, drawing parallels to other significant firearms.

Quick Summary

The CZ Model S prototype (1929) is a rare example of early semiautomatic rifle development, featuring a gas-operated, tilting bolt action and a unique trigger-integrated bolt release. Its design lineage traces back to the French RSC 1917 and Remington Model 8, influencing later firearms like the M1 Garand.

Chapters

  1. 00:00Introduction: CZ Model S Prototype
  2. 01:25Designers and Model Evolution
  3. 02:40Military Trials and Mechanisms
  4. 05:01Controls and Magazine Features
  5. 06:27Markings and Acceptance Marks
  6. 07:15Disassembly and Hinged Action
  7. 08:57Internal Bolt and Spring Assembly
  8. 09:49Gas System and Sling Locking
  9. 12:25Fire Control Mechanism

Frequently Asked Questions

What is the operating system of the CZ Model S prototype?

The CZ Model S prototype operates using a gas-operated system with a tilting bolt. It specifically employs a short-stroke gas piston for its action, a design choice common in early self-loading rifle development.

How does the bolt release work on the CZ Model S prototype?

The CZ Model S prototype features a unique bolt release integrated into the trigger mechanism. Pulling the trigger while the bolt is held open will release it, allowing it to chamber a round.

What is notable about the magazine of the CZ Model S prototype?

The CZ Model S prototype is equipped with a 10-round detachable box magazine. This magazine is described as a 'rock-back' type, indicating a specific method of insertion or locking mechanism.

What historical firearms influenced the CZ Model S prototype's trigger mechanism?

The trigger mechanism of the CZ Model S prototype is a mechanical copy of the French RSC 1917. This design itself drew inspiration from the Remington Model 8 and subsequently influenced the M1 Garand.

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