what is this

http://www.rockislandauction.com/ad_pop.aspx?cid=13809

Scroll to the bottom of the page..
Can anybody tell me what that is...
The barrel, most of the receiver ,and mag have the look of a german weapon ,but the butt stock definitely looks otherwise.

S&W "light rifle".

HUH..never heard of it...Where the hell have i been.

thanks......