My buddy had his cp reg on my gun and it shot fine. We took cp reg off and put on torpedo reg and now my gun leaks at the screw above the reg adapter. I could use some help on what to do.
Those are grub screws. If they are leaking then someone remove them and did not reinstalled them properly.
Remove HPR
Remove the grub screw in question
Clean out all old thread locker
Use either Red or Black Locktite Thread Locker
Let it Dry overnight or you will have to repeat this process.
Clean HPR area of all thread locker debris.
Connect HPR
Go shoot fools
BTW you're not supposed to remove those screws, they are essentially just part of the body