A good barrel would be the CP 1 Piece. Nice accruacy, quiet, very customizable (bore size, length, color, finish), and it looks nice too. You can find them for $40 is some places.
A J&J Ceramic barrel would be great for your gun. They cost around $35.
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GEAR
04 BKO (black) (CP flame drop) (Dye Sticky Grip)
68ci/3000psi ACI Bulldog HPA tank
Halo B (black)
Clear Dye Invision goggles
Proto 3 pod pack
PMI Piranha Full Finger Gloves
JT Premiere 04 Jersey (red)
Proto pants
JT SUV medium gear bag