Likely barrels by Brad and frame by Doug. Which is what i kind of suspected all along.

The colors looked like Dougs to me. And the photo of the barrel flats shows the polishing onto the flats that is typical of what comes out of Brads shop.

The gun likely went through Dougs shop. As Doug does not do damascus finishing in house. He sends them to Brad. Doug told me this himself

B.Dudley