powertube o-ring freezes and hardens due to the cold liquid CO2 and the valve seat(disc shaped w/small hole in it),also. if u use CO2, u have to use an anti-siphon tube in the tank to reduce liquid getting into ur gun.
2002 LED Matrix, Tadao 1.1 M3
2003 LCD Matrix Tadao 5.0 M6, gold bolt
2009 ECLIPSE EGO , blacked out
2009 INVERT MINI, steel blue
1998 TRRACER PUMP
SPLATMaster Rapide(works perfectly)