Airsoft Masterpiece Aluminum Blowback Housing for Marui Hi-Capa GBB Series (Bule)

Airsoft Masterpiece Aluminum Blowback Housing for Marui Hi-Capa GBB Series (Bule) Aluminum Construction Design For Upgrade the Original Parts More Durable Suitable for Tokyo Marui Hi-Capa Series Airsoft Gas Blow Back GBB Pistol The aluminum adds extra structural rigidity which in turn allows the shooter to run the pistol faster and harder.