KNS Precision Adjustable Gas Piston System-AKM Black Small AGP-A-10S. The patent-pending KNS Precision Adjustable Gas Piston System is a replacement for the AKs piston head that attaches to the bolt carrier in about 10 minutes with no major...
KNS Precision Adjustable Gas Piston System-AKM Black Small AGP-A-10S. The patent-pending KNS Precision Adjustable Gas Piston System is a replacement for the AKs piston head that attaches to the bolt carrier in about 10 minutes with no major...