After releasing an initial video, the Middle Aged Gamer follows up with a full review of the Umarex Beretta PMX GBB SMG... "We take a look at the brand new Umarex Berretta PMX GBB SMG, we put this outstanding SMG to the test and tare it down to see how it all works.

This could be one of the best GBB SMG's for the price!"