AMG Gas Magazine High Output Valve For Umarex/ VFC VP9 Airsoft Pistol

AMG Gas Magazine High Output Valve For Umarex/ VFC VP9 Airsoft Pistol CNC Aluminum Construction Airsoft High Output Valve Design For Replace the Original Output Valve Increase in performance and power output when installed Suitable For Umarex/ VFC VP9 Gas Blow Back GBB Airsoft Pistol