KNS Precision 112 Marschall Creek Road Fredericksburg, TX, 78624 Phone: 830-997-0000 Email us at info@knsprecisioninc com
AK Adjustable Gas Piston - KNS Precision Inc. The patented KNS AK Adjustable Gas Piston is a replacement for the AK's piston that attaches to the bolt carrier in about 10 minutes with no major gunsmithing or permanent modification required