Petrol & Powder
Well-Known Member
The lack of the hole in the grip frame makes it a little more difficult to push the plunger in to release the trigger group but a punch held at an angle works pretty well, even without that hole.The 1989 GP100's the hammer is countersunk on both side; the newer ones I have are not. Also the first GP's don't have a hole in the backstrap to push the trigger plugger in, so its a little painful to push in.
As for the hammer, I'm suggesting the inverse of that old style that had bosses around the pivot hole. By placing counter sinks around the hole, the shims would become defacto bosses. The counter sink would prevent the shims from sliding out of position when the hammer was inserted into the frame (the counter sink would trap the shim in place until the hammer pin was inserted)
It's a first world problem.....but there you have it .