Funny I live in Golden, CO...home of Coors and literally live down the street from the main facility and have never heard of their Gluten free beer. Toured their facility too and they have never mentioned it. Personally I'm scared of "gluten removed" beers...don't want to risk it. New Planet here in Colorado makes a great line of ales, dark, and light beers. I'm a fan, the Rasberry is my personal fav although they just released a dark ale that I'm excited to try.
On a side note about the oats...I can't do any oats even Redmill etc that aren't cross contaminated. The oat protein is very similar to wheat and I hear it's not uncommon.