COWCOW Technology Aluminum CNC High Heel Magwell for Marui Hi-Capa GBB 
CNC Aluminum Construction
This 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 Airsoft Guns