Sup guys! This might be a stupid question to some of you, but would green gas break the Tanaka Mauser Kar98? I just recieved my gun last week and tried to use green gas in it and its loud sound really freaks me out (its cool, but it feels like its going to break). I could also admit this is my first gas gun. Please help me figure out if I should continue with green gas or stay low with what the manufacturer prefers :HFC 134a Duster gas. THanks!