WE 30rds MSK Gas Magazine for WE M4 Airsoft GBB (Tan)

WE 30rds MSK Gas Magazine for WE M4 Airsoft GBB (Tan) Polymer Construction 30 Rounds Loading Capacity Magazine Suitable For WE M4/ MSK Series Airsoft Gas Blow Back GBB Airsoft Rifle Best accompanied with Plastic Bullet Loading Too or Speed Loader Suitable for 6mm Plastic Bullet only