Posted 05 March 2015 - 12:41 PM
Because mega barrels are 5/8" wide, rebarrelling mega blasters to use micro darts can be as simple are gluing a section of 1/2" CPVC in place. Other good options include polyester or butyrate tubings from McMaster-Carr, which are both available with 1/2" ID, 5/8" OD. You can also use a narrower tubing like PETG, Lee's aquarium, or brass, with a spacer to make up the difference. Historically, we have simply wrapped the tubing in electrical tape to maintain a good centering position, then glued it in place. If you choose Lee's tubing, it is available in 9/16" OD size (1/2" ID), and 5/8" size (9/16" ID), which nest together well. Of course, you can do the same with brass, but then it requires like four different sizes of tube.
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