Re: Better air efficiency for my marker
A good barrel will make a marker quiet. A Hush bolt... meh. Not so much, it's all in the porting on the barrel. It will help, just not as much. I'd personally get either a CP or UL. UL is quieter IMO, but CP isn't far behind it.
As far as efficiency goes, there's not much you can do on a newer Spyder except for properly tuning a regulator.