I broke down and bought one of these a couple days ago. It came with the 110round drum option. It takes about ten minutes to load it all the way, but jeez; if there's a quicker way to get rid of two boxes of 22lr HV shells I don't know about it!
The fake suppressor covers a pencil barrel, and screws off. My gunsmith is also a Class II/III mfgr. He has it now trying to figure out how to fit a suppressor to it.
Rich
It's HK