KNS Precision AK Adjustable Piston Review

Review of the KNS Precision adjustable gas system/piston on a WASR-10/63 after a few weeks of usage.

Timestamps
0:00 - Introduction
0:57 - Comparison to stronger recoil spring
2:00 - Experiences during installation
3:53 - Tuning
6:12 - Concern areas for long-term usage
7:05 - Conclusion