VFC 20 rds M4 Airsoft Gas Magazine (Gray)

VFC 20 rds M4 Airsoft Gas Magazine (Gray) Metal Construction Airsoft Magazine 20 Rounds Loading Capacity Gas Magazine Suitable For VFC M4 Series Gas Blow Back GBB Rifle Airsoft Guns Also Fit For Umarex (VFC) H&K416 Series Airsoft Gas Blow Back GBB Airsoft Rifle Work With Top Gas/ Green Gas Best accompanied with Plastic Bullet Loading Too or Speed Loader Suitable for 6mm Plastic Bullet BB