i set my G4 down after a game and all of a sudden a loud pop and air leak sound slond came from my gun. the air came out of the screw that holds the macrol line under the reg. i know it was this peice because i flipped the macrol line and other peices to diffrent sides and the problum was in the same place.when i took the reg off i could easily blow through even though it seemed as the air was being stopped when i turn the asa back on. when i turn the asa on the same thing happens: air rappidly blows from the screw under the reg like there is no air flow. yet i can blow through whole air system......any help would be nice on what to do. if i had misinturprited the problum or need a new peice please say so!!!