I was searching for a drum mag for awhile now and I think I may have found it, but I need some advice as it may not fit.
Description:
The AIM Drum Magazine For G36 Series (Electric motor Power) is powered by four AAA batteries and holds up to 2500 rounds. It loads through the hatch on the top of the magazine like any high capacity magazine. The magazine is wound by a pressure switch that plugs into the rear of the magazine like headphones into a CD player.
This magazine is designed for most major brands of UMP/UMG such as TSD, CA, TM, JG, Echo 1, KWA, and STAR. This magazine may work with other brands of AEG but cannot be guaranteed by Airsoft GI.
As it says that it may fit an UMP/UMG. From the way it looks the mag would not fit into my reciever or how ever you spell it.