Kung Fu Hop-Up Adjust Wheel for Tokyo Marui Hi-Capa 5.1 GBB Airsoft

Kung Fu Hop-Up Adjust Wheel for Tokyo Marui Hi-Capa 5.1 GBB Airsoft Metal Construction Airsoft Hop-Up Adjust Wheel Design For Replace the Original Airsoft Internal Parts Suitable For Tokyo Marui Hi-Capa 5.1 Gas Blow Back GBB Airsoft Pistol