I have enquired about this MP40 for sale. The pics are tiny and not detailed enough for me to make sense of them. It looks to be a deactivated one, but was it ever a real one to start with? The lettering on the back piece doesn't conform to any examples I have been able to dig up. I know that the receiver is the all important piece legally, and would not buy it with the receiver, even in its deactivated state - no jail time wanted here!! It is rough!