Can anyone tell me how to get that GDF screw out of the folding wire stock on my CZ 858? I have the FAB M4 stock I want to replace it with but that screw will not budge. I have trying all the stuff I have seen on the net but nothing has worked. Is the wrench they used to put this thing on available anywhere or am I going to have to get a piece of tool steel and grind it to fit?




















































