Copper pipe that you find at Lowe's works well. Cut a small notch in the ends and throw on a hose clamp and you're got yourself an indestrucable clamping elbow.
Bring your mainbody(ONLY! NO TRIGGERFRAME OR BARREL) and hopper to make sure you find the right fit. And you can always make a spacer is one is noticably smaller that the other.
The Inflicted (MCB) - "Anyone find it amusing how as spool valve guns have progressed they've just gotten closer and closer to the Automag? "
"But if you don't want to serve the Lord, you must choose for yourselves today whom you will serve... As for me and my family, we will serve the Lord."
~PROUD member of the NRA~