How about a Thompson sub machine gun?
Ah, the classics. I almost bought one once. They’re sweet and super desirable, but, since this may be the last assault rifle I’m ever allowed to purchase, i think it should be a little more...useful.
I got to shoot one with the Cutts compensator. I ran through all my 'daddy is playing' money in about a minute. That includes reloading the stick mag. Once.
Very fun. Not very practical.