KNS Precision AK Adjustable Gas Piston System

There will be sound in the last 2 clips to show the rate of fire difference. We are releasing this product at Shot Show 2018. We have many different length systems to fit most AK variants. MSRP is $149 for all variants, except the PSL will be $165. Our piston installs very easily with or without a gunsmith by: 1. Drilling or knocking the rivet out that holds the piston in the carrier. 2. Unscrewing the piston head 3. Screwing in our piston assembly 4. Put a roll pin (supplied) or rivet, back into the carrier 5. Replace carrier and go shoot. Over 70 clicks for plenty of adjustment. Subscribe to our channel and check out our website and Facebook page for more information.