The Forgotten Weapons Cursed AK Is FIXED!

Published on April 30, 2021
Duration: 10:34

This guide details the complex process of restoring a dangerously flawed AKS-74U (Krinkov) build, as demonstrated by Brandon Herrera and his builder Zach. It covers critical steps like properly attaching the gas block, repairing or replacing a compromised bolt, and re-riveting the receiver to ensure safety and functionality. The expertise of a professional firearm manufacturer is highlighted throughout the restoration process.

Quick Summary

Expert firearm manufacturer Brandon Herrera details the restoration of a dangerously flawed AKS-74U (Krinkov) build. Key repairs included properly securing the gas block via press-fit, correcting compromised bolt lugs to ensure safe headspace, and reinforcing the receiver with correct riveting techniques. The process highlights the critical importance of professional gunsmithing for safety-critical firearm components.

Chapters

  1. 00:00Introduction: The Cursed AK
  2. 02:20Technical Flaw Breakdown
  3. 03:57Barrel and Gas Block Issues
  4. 05:41Bolt and Safety Critical Failures
  5. 06:56The Restoration Process
  6. 08:28Range Testing and Conclusion

Frequently Asked Questions

What were the main safety issues with the original 'Cursed AK' build?

The primary safety concerns included a gas block that detached during firing due to improper attachment, significantly ground-down bolt lugs compromising headspace, and poorly executed receiver rivets weakening the firearm's structure. These flaws posed a severe risk of catastrophic failure.

How was the gas block issue on the AKS-74U resolved?

The gas block was re-secured through a proper press-fit. This often requires machining a new barrel blank to ensure correct journal dimensions, especially if the original journals were damaged or oversized, as was the case in this restoration.

Why is grinding down bolt lugs dangerous on a firearm?

Grinding down bolt lugs is extremely dangerous because it directly affects headspace. This modification can lead to the bolt not locking correctly, potentially causing case head separation or a catastrophic failure where the bolt or receiver ruptures during firing.

What caliber is the AKS-74U (Krinkov) typically chambered in, and was it changed during the restoration?

The AKS-74U is typically chambered in 5.45x39mm. During the restoration of the 'Cursed AK', the caliber was reverted back to its original 5.45x39mm from a previous .223 Remington conversion to ensure proper function and compatibility with restored components.

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