On the PGP2K1, there are 2 screw holes on the RVA. When replacing it, make sure that there is about 2 to 3 millimeters between the RCA and the back of the marker. I am going to put a set screw into the opposite hole so that I cant use it and it will make aligning easier.
You will have to remove the rear grip frame screw completely to unscrew the RVA.
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