the only thing u need to do is take the reg off the tank thats it.. u dont have to have anything declared.. its not a firearm. u dont have to take the marker apart.. nothing other then the reg has to b done..
going to phx. the lady tried to make me declare my markers as firearms. and delayed me long enough to miss my flight.. i argued with her for a while that i dont have to declare them and have a firearms tag.. but no they wouldnt listen.