Guarder Magazine Spring & Follower for Marui Hi-Capa 5.1 GBB Series

Guarder Magazine Spring & Follower for Marui Hi-Capa 5.1 GBB Series Design for Upgrade the Original Magazine Spring & Follower Work With Heaviver Weight BBs Suitable for Tokyo Marui Hi-Capa 5.1 Series Airsoft Gs Blow Back GBB Pistol Magazine