Tippmann Carbine, Armson Stealth 13" barrel, Ricochet 2k hopper, polished internals, lightened bolt, expansion chamber, 2 finger trigger, dye sticky grip, my own custom trigger job(VERY light and VERY smooth)
RPS/PMI Evil or Draxxus/Diablo Inferno
Extrememy accurate, most accurate barrel I have ever shot or seen. Very quiet also.
This is a great barrel, I bought it for $55 from a local army surplus store(General Merchandise) a couple years ago. This barrel has always worked perfect for me, wether using my own paint or crappy field paint. I have shot well over 5 cases of various types of paint out of this barrel. I have only had 1 ball ever break in it, and that was when I was using a year old case of RPS/PMI Premiums that were very dimpled and brittle. Even then only 1 ball out of the whole case of 2000 broke.
I think this is easily the best barrel out there. It is by far the most accurate, but not quite as quiet as some others.