SpudFiles

I have a nooby question. For an auto bb machine gun you have to have a constant airflow from a compressor or something else? If you fill an air container on your gun how many shots do you get from like 70 psi?

You need a costant flow of air for BBMG's. A air compressor is really the only source of air that you can use for a BBMG that I know of. Cant anwswer the last question because there is variables (contanier size, valve?) BLB proably has a forumla for it but Im pretty sure its not going to work for you (contanier full of air).

no, not always, you can use a precharged chamber, but it wont be as good.

"won't be as good"
Eh? Seems to me that you'd probably get better flow from a chamber connected directly to the chamber than you will from an air compressor with it's regulator and hose.
It won't fire as long, though, as the chamber will almost certainly be smaller than the air compressor's storage tank.

Thx, well I think I'll go with the chamber on the gun because I don't have a working compressor.