Not as much the barrel as the people that make them.....But i won't get started on that. Evil pipe is good, bit pricey though. Take a look at the dye xcel range, or proto or whatever their calling it now.
-jtl
try a jt two piece,if they do 'em in tippman threads that is just remember to check what bore size you want before you purchase(any barrel system,except the freak that is),'cause its a right f**k on ,once you realise you have the wrong one(i.e.its too small or too big)