I had time today to compare the two, and here are the results: They are the same. The forend I thought fit on the first one fits neither. I had it confused with another forend that does fit both. I spent the morning with three barrels (two of them G2) and a stone and have all working now. The newer frame apparently is a closer fit than the first. They are all working now. I have to take a good look at the other forestock and see how much carving it will take to make it work. So much for that...