mmmmmmmmmmmmmmmmmmm... STG-44...
Duuuuuude! you're like, alive and stuff. Cool.
Ya gotta click the pic (and then verstehen the deutsch)
Actually, that's the MP44 configuruation. It was called Maschinenpistole to keep the project below Hitler's radar. For Hitler, bolt action=good, semiauto=bad, machinepistol=okay.
When rave reviews kept coming back from the Russian front, Hitler finally asked to see a "MP44". He reversed himself, and declared it the best thing since sliced pumpernickel. He also coined the term, "sturmgewehr", which literally translates to "assault rifle". The weapon, with slight changes in furniture, was blessed with the designation "StG45".
As with all good ideas, Hitler made sure it was too little, too late. But it made quite an impression on the Russians.