CYMA - G36 Airsoft 450rnd Hi-Cap Magazine - Black is a High Capacity Magazine which is designed for CYMA G36, and will fit other brands. The shell of the magazine is constructed from Poylmer, with Alloy Internal Gears. The magazine features interlocking mounts on the magazine allowing you to stack them for quick mag changes, or for storage. To load the magazine first poor them into the door on the top of the mag, and then wind the wheel at the bottom. This is the perfect magazine for those Airsoft Skirmisher who belive in accuracy through volume, and love the capacity of Hi-Cap magazine but dont mind winding it up.