I am not sure if Turnbull did the bluing as well. I ordered this back in late 2005, and was told by Cimarron that Turnbull was doing their USA finish. I ordered the gun with these optional grips directly from Cimarron. They are not Ivory. To my surprise when I opened the box, the optional grips were just in a bag, so I installed and fitted them myself. I am very happy with them. The whole idea behind ordering this gun was the connection to Cimarron, New Mexico, where the Boy Scouts of America have a National Camp called Philmont. The Fleur de Lis grips were also a tie in to Boy Scouts. My son recently obtained his Eagle Award, and this beauty is now going to my son.