Airsoft Masterpiece Recoil Spring Guide Plug for Marui Hi-Capa 5.1 GBB (Silver)

Airsoft Masterpiece Recoil Spring Guide Plug for Marui Hi-Capa 5.1 GBB (Silver) Metal Construction Upgrade for users that might want to us a stiffer spring for a prolonged period of time Suitable for Tokyo Marui Hi-Capa 5.1 Series Airsoft GBB Pistol