Looking for something to go rock and roll with in airsoft game? Perhaps this 1200-round Twin Drum Magazine for M4/M16 AEGs from Tokyo Marui that is available at eHobby Asia is what you're looking for... "Suitable for Marui M4/ M16 Series Airsoft Electric Gun AEG Rifle & High-Cycle Rifle, this is a 1200-round standard drum magazine. It has large thumb handle on the back of magazine for wind up the compression spring to feed BBs. This is suitable for 6mm plastic bullets only and comes with a fast charger."