[Fai Mao]

Question, if these use air rather an explosive propellant, how much noise do they make?

[eastforker]

I would say quite loud if you are releasing up to 4500 psi.

[Bob434]

see the video i posted, aroudn the 9:30 mark will give you an idea of the .50 cal sound

[crosdaddy]

My .20,.22, .25 all sound about like a .22 , if I didn’t have suppressors on them,other wise pretty quit, just a little twang.