Cz 858 (vz 58) Field Strip & Internal Features

Published on January 19, 2020
Duration: 11:01

This guide details the field stripping process for the CZ 858 (VZ 58), highlighting its internal mechanisms. The video demonstrates how to remove the rear cover, carrier group, bolt, and gas piston. Key features discussed include its striker-fired design, short-stroke gas operation, milled steel receiver, and the distinct internal workings compared to AK-pattern rifles. The process emphasizes safety checks and the sequential removal of components for maintenance.

Quick Summary

The CZ 858 (VZ 58) is a striker-fired firearm with a short-stroke gas-operated system. Field stripping involves removing the rear cover, carrier group, bolt, and gas piston. Its milled steel receiver and distinct internal mechanisms differentiate it from AK-pattern rifles.

Chapters

  1. 00:00Introduction to CZ 858 (VZ 58)
  2. 00:24Caliber and Magazine Removal
  3. 00:31Dropping the Striker
  4. 00:41Removing the Rear Cover and Spring Assembly
  5. 01:03Recoil and Striker Springs
  6. 01:22Striker-Fired Design Explanation
  7. 01:31Removing the Carrier Group
  8. 01:42Carrier Lock-Up Mechanism
  9. 01:55Short-Stroke Gas Operation
  10. 02:37Bolt and Locking Collar
  11. 03:03Milled Steel Receiver and Action Rails
  12. 03:29Ejector Function
  13. 04:01Exposing the Gas System
  14. 04:17Piston and Spring Removal
  15. 04:45Piston Travel and Impingement
  16. 05:16Short-Stroke vs. Long-Stroke Gas Systems
  17. 05:40Reassembly: Carrier Group and Locking Collar
  18. 06:24Striker Retention and Trigger Function
  19. 07:09Maintenance and Ease of Use
  20. 07:36Charging Handle Design
  21. 07:56Optics Mounting Options
  22. 08:25Aftermarket Parts and Modernization
  23. 08:39Classic Military Appearance
  24. 08:57Sponsorship and Canadian Market
  25. 09:09Bonus Gun: Valmet Hunter
  26. 10:03Valmet Action and Receiver Comparison
  27. 10:26Conclusion and Future Content

Frequently Asked Questions

How do you field strip a CZ 858 (VZ 58)?

To field strip a CZ 858 (VZ 58), first ensure it's unloaded. Remove the magazine, drop the striker, and push out the captive rear pin. Then, remove the rear cover, followed by the carrier group. Finally, remove the bolt and locking collar, and the gas piston assembly by disengaging its retaining pin and pulling it out.

What type of gas system does the CZ 858 (VZ 58) use?

The CZ 858 (VZ 58) utilizes a short-stroke gas-operated system. This differs from a long-stroke system like the AK-47, where the piston is physically attached to the carrier. In the VZ 58, the short-stroke piston impinges on the carrier to cycle the action.

Is the CZ 858 (VZ 58) hammer-fired or striker-fired?

The CZ 858 (VZ 58) is a striker-fired firearm. It does not have an external hammer; instead, a spring-loaded striker is released to ignite the primer, contributing to its distinct internal mechanism.

What are the key internal differences between a CZ 858 (VZ 58) and an AK-47?

The CZ 858 (VZ 58) is striker-fired and uses a short-stroke gas system, unlike the AK-47's hammer-fired design and long-stroke gas system. The VZ 58 also features a milled steel receiver with action rails, providing a different operational feel and potentially lighter weight.

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