Pro-Arms STI Tactical Magwell for Marui Hi-Capa GBB

Pro-Arms STI Tactical Magwell for Marui Hi-Capa GBB Metal Construction Magwell can speed up your reloading time We recommend this magwell to all skirmish players and competitive (IPSC) shooter Suitable for Tokyo Marui Hi-Capa Series Airsoft Gas Blow Back GBB Pistol