AK-50: January 2019 Update

Published on January 21, 2019
Duration: 5:37

This video details the challenges encountered during the development of the AK-50 V5 prototype, specifically focusing on warped receiver rails that prevented its readiness for Shot Show. Lead instructor Brandon Herrera explains the design choices, including the justification for a cast receiver in this specific application due to the barrel extension bearing the primary stress. The update highlights the commitment to transparency in sharing both successes and failures.

Quick Summary

The AK-50 V5 prototype faced a critical setback due to warped receiver rails, measuring 179 thousandths of an inch out of alignment. This issue prevented the firearm from cycling properly and being ready for Shot Show. The design's low-stress receiver, where the barrel extension handles primary forces, is discussed as a key engineering choice.

Chapters

  1. 00:00Initial Problem: Dysfunctional AK-50 V5
  2. 00:09AK-50 V5 Pre-Production Goals
  3. 00:26Design Lessons & Component Issues
  4. 00:43Measuring Warped Receiver Rails
  5. 00:57Prototype vs. Production Standards
  6. 01:17Underestimated Project Difficulty
  7. 01:29Justification for Cast Receiver Design
  8. 01:52AK-50 Receiver & Barrel Extension Design
  9. 02:44Low Stress on AK-50 Receiver Explained
  10. 03:09Commitment to Transparency
  11. 03:45Shot Show Setback Confirmed
  12. 04:32Resilience and Future Outlook

Frequently Asked Questions

What issue prevented the AK-50 V5 prototype from being ready for Shot Show?

The AK-50 V5 prototype experienced significantly warped receiver rails. Measurements revealed a gap of 179 thousandths of an inch, preventing the bolt carrier from cycling correctly and thus deeming it non-functional for display.

Why is the AK-50 receiver design acceptable for casting, despite concerns about traditional AKs?

The AK-50's receiver is not a stressed part in the same way as a traditional AK. The locking lugs and explosion containment are handled by a separate, machined A2 tool steel barrel extension, allowing the receiver to be a lower-stress component.

What are the primary functions of the AK-50 receiver?

The AK-50 receiver primarily serves to house the fire control group, the magazine, the barrel extension, and provide rails for the bolt carrier. It experiences minimal stress compared to traditional AK receivers.

What lessons were learned from previous AK-50 prototypes?

Learnings from earlier versions (like V1) were applied to the V5 design, including the use of computer simulations. However, unexpected issues like warped receiver rails still emerged, highlighting the ongoing challenges in development.

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