I have pick up a used model 60 this week. The gun is in great shape, but the thumbpiece and thumbpiece nut is missing. The seller said he got it that way from a family member. The gun looks like it does not have many rounds fired and when I open it up the insides are clean and have not been worked on. It also has a t-grip on it. I checked with Midway, Brownells, and Numrich and they donít have any, they are on back order. Is the model 60 thumbpiece and thumbpiece nut the same size as the k, l, and n frames? Does anybody know where I can find one? I donít care if it is blue and/or stainless.