Spyder Pilot ACS
Evlution II Y-board clear
Tru-flight rifled barrel 14'
Can make balls curve bad if you dont have the barrel completely clean.
I bought this barrel for a cheap upgrade from stock. I didnt really find much improvement to be honest. The rifling make re-balls curve HORRIBLE. If you have a chop they curve just as bad. Sometimes the barrel is hard to get on and the threads have bent on mine alittle.
Not recommended because i can barely see a difference from a decent stock barrel.