EX-6000 Scope Adapter Tube

This is what I need, it is a metal tube with a screw hole on each end, the tube should be longer than this one, 8 inches long with the proper screw hole centered in each end, Dimension I believe the tube is close to 5/16 but I will verify, also the screws show as 1.20 and 1.35 but I will verify before we do this. Let me know if you can make this I'll get the measurements..