All it takes is the smallest opening for a leak to occur anywhere on your paintball gun. A simple application of Teflon tape will save your head on the field.
Application is simple:
First, unscrew whatever it is that screws into your gun that has a leakage problem. Here, I’m using my braided steel line.
Pull a small strip off your roll of Teflon tape.
Tightly wrap it around the threads 2-3 times.