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

GK Tactical Stainless Steel Outer Barrel for Tokyo Marui Hi-Capa 5.1 GBB (Silver) Satainless Steel Construction Airsoft Outer Barrel 11mm CW Inner Thread Suitable For Tokyo Marui Hi-Capa 5.1 GBB Gas Blow Back Airsoft Pistol