GHK MK12 20 rds Green Gas Magazine For GHK M4 GBB Airsoft Rifle

GHK MK12 20 rds Green Gas Magazine For GHK M4 GBB Airsoft Rifle Metal Construction Airsoft Magazine 20 Rounds Loading Capacity Gas Magazine Suitable For GHK M4/ G5/ AR15 Series Gas Blow Back GBB Rifle Airsoft Guns Work With Top Gas/ Green Gas Best accompanied with Plastic Bullet Loading Too or Speed Loader Suitable for 6mm Plastic Bullet BB