I have a project I'd like to do, involving a Remington 870, but I need a machinest that can mill something out of steel. Before y'all say how dumb and worthless pistol grip only shotguns are, I've heard it. And I still like them. My idea is, to machine (have machined) basically the grip frame of a 686 or 629 revolver, that would attatch to the rear of an 870 receiver, then, you could put any 686 or 629 grip, on your 870. Anybody know anybody that could do this, or have any input?