Dye stainless steel and Armson Stealth....all good at the right time with the correct combination of paint.
Spyder or Tipp98
The ACI Zero Gravity barrel could probably shoot rocks if they were .68. Just about any paint will do, it has a rather large bore in comparison to the other barrels.
Well, it is a combo barrel so you are getting the advatages of both stainless steel and aluminum. The porting keeps it pretty quiet and it shoots very accurate. I have had it for about 3 years and it still does the job so it is durable. 12" is a good length for it too.
It can detract from the range of your paint a little but it makes up for it in accuracy.
Overall, this is a good buy at $70. Good for an upfront player because of it's hopper hitting accuracy and its lightweightedness at 12".