I had an M1 Garand that would not cycle. After some investigation I found the the operating rod piston was only .516. Took another operating rod from my other Garand, rifle worked fine. I was looking at the Sarco webb site and found you can purchace new operating rod pistons / tips seperatly. I have tried to remove the old piston from the rod with no luck. Anyone have an idea how to get the old piston out of an op rod?