Nitro duck plasma
Halo B rip
Freak ss inserts 14"
Pretty much whatever you have as long as its not horrible
Paint - Barrel match
Little on the expensive side
This barrel is pure bliss. I have shot a few other barrels like the empire and kaner but nothing compares to this. This is a must for a serious cocker owner. Haveing so many inserts is great. There is nothing like this. When i first shot it i was eststic. I love watching the paintballs hit the same spot 10's of times in a row. I was amazed at how straight the flight was. It is also fairly quiet so you dont feel like your shooring a cannon cough*pipe*cough.
Now when i first got it i was a little pissed because i couldnt get it on my gun. The curvy back wouldnt go over my front block and milling but with a little dow 33 i got it on. It is also a little hard to get off over the penumatics but this isnt a major problem for me.
This is a great barrel and will last you a for ever. If you get a new gun buy a new back for <$50 and your set. You will never need a new barrel again. Its accurate, quiet, good looking, and matched your paint so If you can afford it buy it.
If you are having problems getting the back to fit around your front block, it probably means that your front block is slightly tilted, and needs to be straightened (front blocks are normally quite a loose fit on the front of the body, so you can move them from side to side a little).