This auction is for an Imperial Guard Sentinel. It was my first Warhammer mini, and the guys at GW liked it enough to host it on their Facebook photo wall:
Here's a link to the auction. The auction is for the actual model shown, and not a copy. For a collector, it's a nice little bit of bragging rights, since they only have 44 pics on their Facebook site and no others of the Sentinel. Thanks for looking!