Hi all, new to the hobby- Got a brand new Terminator gen 2 30 cal and its had a leak since day 1 and I'm looking for some help. via the soapy water test, I've located the leak to be the screw that the air gauge screws into. there are no bubble around the air gauge and the screw, the bubbles are all between the black screw and the body of the rifle. The vendor I purchased from sent me additional delrin seals for the gauge to the screw, but installing one did nothing to stop the leak. Is there another seal under the black screw that could be the issue?