It would be a Kolar competition gun or a Krieghoff K-80 12ga Over Under / with a carrier barrel - and a full length set of sub-gague tubes in 20 and 28ga and .410 - setup with a Trap stock and adjustable comb - probably with 30" barrels. I could use it for hunting and all of the clay targt games.
http://www.krieghoff.com/content/view/13/63/
http://www.kolararms.com/competitionshotguns.html
I'm leaning toward the Kolar right now ....