Samoon Steel Outer Barrel For GHK AKM GBB Airsoft Rifle

Samoon Steel Outer Barrel For GHK AKM GBB Airsoft Rifle Steel Construction Outer Barrel Airsoft Design For Upgrade the Original Airsoft Outer Barrel More Durable Suitable For GHK AKM Gas Blow Back GBB Rifle Airsoft Gun Length: 390mm