I own several. personally I run mine on syphon co2 with a Cocker Armson pro-series. TITAN1 - MCB Paintball Gallery
you can see the gap on the barrel. the gun is well used. I think if the power feed was the other way around it would be my main gun.
I also found out that there are no replacement barrels,
Smarts Parts made All Americans and Boss barrels in the Titan thread. PMI also made a PMI Perfect barrel for it since they were distributors of the gun.
My girlfriend has the AA, purchased from my store back in 99.
they also made Venturi bolts for them.