I need to remove the piston from the lube reservoir, which is air powered from one of Kyle's kits. The problem I have is using the factory threaded rod to pull the piston back out, where the pistol is so low the top of the rod is just below the top of the reservoir tube and impossible to pull out. Thought I saw somewhere that an eye-bolt could be used with a couple to pull it out. Does anyone have the info on doing this (size of bolt & thread)? Or another recommendation?