MetalTac Airsoft M-Series Magazine Flash Mag, High-Cap 360 Round, Full Metal (Green) for AEG Airsoft Guns, Lightening Fast Loading, Ultra durable Green high capacity M4 / M16 flash magazine design Full metal construction and magazine capacity of 360 rounds of BBs Winding string instead of wheel to quickly load BBs Based off Tokyo Marui design. Works with any TM compatible airsoft guns Comes with MetalTac 30 Day Warranty