universal spyder virtue board
12" CP barrel
new designz feed neck
HALO B w/ rip and v35 board
48ci 3000 psi NO2 tank.
All paintballs should be fine, watch out for cheaper ones as they tend to veer off in weird ways.
I bought one of these things about 3 years ago from my local paintball store for 50 bucks. It was the 20" one so the extra price was no surprise. I slapped this thing on my good old victor and I was baffled by the accuracy. My friend has a hammerhead ported barrel, he paid 180 bucks for it, and this barrel was just as accurate. It is also relatively cheap, especially for the level of accuracy gained. This was what gave me the edge on the field as a kid before I could afford a high-end marker and other stuff. This barrel was available from 10" to 20" (if I remember correctly) which is a great range for one barrel type. This barrel handles the max velocity of my victor well and can easily shoot 150-200 feet.
This is a fantastic barrel, I've used the same one on my victor for years and I wouldn't trade it for anything.