GK Tactical Stainless Steel Outer Barrel for Tokyo Marui Hi-Capa 5.1 GBB

GK Tactical Stainless Steel Outer Barrel for Tokyo Marui Hi-Capa 5.1 GBB Stainless Steel Construction Airsoft Outer Barrel With Inner Thread Suitable For Tokyo Marui Hi-Capa 5.1 Gas Blow Back GBB Pistol Airsoft