Samoon Enhanced Blowback Kit For GHK AKM GBB Airsoft Rifle

Samoon Enhanced Blowback Kit For GHK AKM GBB Airsoft Rifle Steel Construction Airsoft Enhanced Blowback Kit Design For Upgrade the Original Internal Parts More Durable Able To increasing the blowback recoil performance by up to 40% Suitable For GHK AKM Gas Blow Back GBB Airsoft Rifle