Looks like Marui is going for a GBB version of the MP7A1 ... very impressive. I've been considering getting the KWA MP7 for awhile, having used it and been satisfied by the performance (Recoil was nonexistent though.)
And then this comes along ... that kick looks impressive, especially considering that videos NEVER do recoil justice. Definitely going to be following this one.
-CroW