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Al's Review of KNS Precision Adjustable Gas Piston System
The KNS piston is an excellent product I recommend for every AK variant owner. The install was easy with a hand drill, punch and hammer. My Chinese Mac 90 variant was so overgassed with a suppressor it was malfunctioning. It was very simple to tune it and now it runs perfectly.
Pros:
- easy to install
Cons:
- None
Would Recommend:
Yes
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