Was also wondering...
I have a 6ish year old Autococker which I've been using on gas, now I do know that my marker has been used on air in the past but before I bought it, and have also used it on air down the range today very briefly but the range owner was worried about the mechanisms in eide the gun as he was unsure if this marker needs converting (lines, springs etc) to air from CO2, just wondered if anybody would know as don't want to waste what little cash I have on semething that will hurt my marker
Wingnut