Yo man, I have a PMR as well.
The leak you are talking about has to do with the gasket itself and leveled position of the solenoid. Remove the grip frame from the body, unscrew the solenoid, re-lube the metal surface where the rubber gasket goes as well as the gasket and re-tighten it to the body.
If there is still a small leak, remove the grip frame again, check the spaces on both sides of the solenoid, in my case, the side with the eye wire was closer than the other side so I used a small piece of paper, folded it up a few times and placed it in the smaller gap so it pushes the solenoid enough to the other side to stop the leak. in my case it worked, if you would like me to show you pictures in a step by step process let me know.