It seems to be a trend by some airsoft companies based in Taiwan to make some external design changes on existing firearms to make a new model. ICS and G&G are two, and here is WE with its own approach, and in this case it's the MP7 which seem to be the base design for the SMG-8 according to Public Enemy.  It might take an acquired taste to like this design.

It will be released very soon and priced nicely, which means to say, it'll be affordable for a good number of airsoft players.