Different bore size barrels

[kvilleboy]

Can anyone here give me a list of all of the barrels that have the ability to change bore size to paint. Ever since the Freak, I have not seen another system that is as comprehensive as it. If anyone has any experience with any of the barrels, I would also like to hear about it.

-thanks

[Mcot]

Freak, ACI "phat", equation, bizerk. Thats all I know of.

[Meph]

http://www.pbreview.com/forums/showthread.php?s=&threadid=39514
The "Aradus". Don't have to worry, twist and click. No sleeves required. It's a built-in sleeve.