Lets see, where to begin....
Eagleworks barrel (not as quiet and not as accurate)
cmi 16 inch barrel (same)
smart parts progressive (good but not as quiet and not as much range)
armson stealth (about the same accuracy but the stealth is loud)
and a few other barrels that dont measure up.
Spyder Compact 2000
pmi expantion chamber
and lets definately not forget the taso stone cold II
I have had a great time with this barrel. I played a few people in paintball and was able to spray paint on people from a very great distance. Many people would look up to see who was firing at them. They look at me but they dont think I can hit them from that great of a distance. Even if somebody fired back at me, they lacked the range to hit me back. This is a barrel that can put a tight grouping on people and make them drop in their bunkers less then a second after you have fired on them!
The accuracy is also very good. Somebody was down in a bunker, raised his gun and fired aimlessly out at our team. I was about 100 ft away and after a few shots, I nailed him in the gun!
I can't tell you how quiet this barrel is!
Also, bought on ebay for about 50 bucks!
Mabe that its long, but it dosent get in my way. If length is an issue, get the 14 inch.
What more do you expect!
I have not shot freak, boomstick, big daddy, or any of those other barrels, but you usually pay more then 50 bucks for them.