Just found this on TechPB's Forum and thought it was worth a link. This is just a shell not the battery powered one for sale now. It will go into the cyclone like any other standard A5 hopper, but this one will have the removable nose so that it can hold 400 paintballs as a time and not add anymore front profile than a standard hopper. If you combine this bad boy with a BT Rip Clip I can see some nasty Tippmanns in the near future.
http://www.techpb.com/forum/index.php?showtopic=3431
