Try
http://users.iafrica.com/n/nj/njj741t/
Guns and Weapons for Law Enforcement magazine had a couple of write-ups on the prototypes of this gun a few years ago. They were very impressed. I was drooling
.
But don't hold your breath, I've been waiting for production to start on this gun for 5 years. Even then it will probably be banned from import.
Oh well, it doesn't hurt to dream.
P.S. Are there any American semi-auto bullpup shotguns?