Testing The Plastikov

Published on May 4, 2020
Duration: 16:56

This review tests the Plastikov, a 3D-printed AK receiver, highlighting significant design flaws. Issues include difficult assembly due to a captive bolt carrier, a dust cover that pops off, and frequent cycling failures caused by rail wear and improper bolt rotation. The ultimate failure was hammer pin walk, rendering the firearm inoperable after minimal use. The conclusion suggests 3D printing is better suited for jigs than full receivers.

Quick Summary

The Plastikov 3D-printed AK receiver test revealed significant flaws including a captive bolt carrier hindering maintenance, loose tolerances causing dust cover failure, and frequent cycling issues due to rail wear and bolt rotation problems. The final failure was hammer pin walk, stopping function after minimal rounds.

Chapters

  1. 00:00Intro: The Plastikov Project
  2. 01:53Assembly & Serviceability Issues
  3. 03:29First Test Fire & Dust Cover Failure
  4. 04:53Cycling Failures & Rail Wear
  5. 08:47Final Failure: Hammer Pin Walk
  6. 11:16Conclusion & Recommendations

Frequently Asked Questions

What are the main problems with the Plastikov 3D-printed AK receiver?

The Plastikov suffers from difficult assembly due to a captive bolt carrier, loose tolerances causing parts like the dust cover to fail, frequent cycling issues from rail wear, and ultimately, hammer pin walk which stops function after minimal rounds.

Why did the Plastikov experience cycling failures during testing?

Cycling failures occurred because the bolt was rotating too early. This was due to wear on the internal rails and a mismatch between metric receiver rail dimensions and US-sourced imperial parts, causing the bolt to bind before fully engaging the trunnion.

What was the ultimate failure that stopped the Plastikov test?

The final failure was the hammer pin 'walking' out of the receiver. The plastic holes became 'egged out' from the force of the hammer resetting, preventing the fire control group from functioning and rendering the firearm inoperable.

Is the Plastikov 3D-printed receiver recommended for builders?

Based on this test, the Plastikov is not recommended due to reliability and build difficulty issues compared to traditional steel receivers. The speaker suggests 3D printing is better suited for creating jigs for steel builds.

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