They were displayed at the Walther IWA booth. Someone posted a video, i'm sorry I don't remember where but the LGU was on the wall??
I have not had any trouble communicating by email with a guy named Mark but it has been difficult with parts. When I bought my gun it came with no cocking glider." I was able to get the entire cocking linkage and glider but I would have been dead in the water if it were not for Mark at Umarex. I think some of the parts are being horded by sellers in Europe.