Gunsmith Bros Gold .40 ACP Outer Barrel for Marui Hi-Capa 5.1 GBB Pistol

Gunsmith Bros Gold .40 ACP Outer Barrel for Marui Hi-Capa 5.1 GBB Pistol CNC Steel Construction (Titanium Nitride Coating) Engraved Realistic Marking on Barrel Suitable For Tokyo Marui Hi-Capa 5.1 Series Gas Blow Back GBB Pistol Airsoft Guns