SMG Case?

[usmc69]

This came in the door at the local gunshop. Any best guesses as to what it is? The previous owner thought is was for a Thompson. It has a pocket inside (magazine?).

http://i108.photobucket.com/albums/n1/usmc690303/Case1.jpg

http://i108.photobucket.com/albums/n1/usmc690303/Case2.jpg

http://i108.photobucket.com/albums/n1/usmc690303/Case3.jpg

http://i108.photobucket.com/albums/n1/usmc690303/Case4.jpg

[Peteinca]

that is a AK-47 with folding stock jump case.