Start with these parts: a Ύ pvc/cpvc adapter, a short (1-1 ½) length of Ύ pvc, 2 of ½ cpvc, and a Ύx1/2 cpvc reducing bushing, plus a cpvc barrel of your chosen length (mines 12). First, the chamber.
Wrap one end of the short bit of cpvc in two turns of e-tape, and drill two 1/8 holes in the opposite end. With a dremel or knife, bevel the inside surface of the taped end, so it has a nice, smooth taper. Do the same to one end of your barrel. Now, glue the taped end into the bushing, thusly.
Squirt a bit of hot glue into the 1/8 holes in the chamber piece, and wrap the end in enough e-tape so that it fits snugly into the Ύ stub.
The glue will prevent darts from being pushed into the plunger tube. Shove the assembly through the adapter, seat the bushing in the end of the adapter, then force the Ύ stub over the end of the cpvc and up into the adapter.
Glue this unit into the bushing at the end of the blaster. Now, just remove the barrel, push your dart into the recessed chamber until it seats fully, then plug your barrel in. Fire, and repeat. I put a sleeve of Ύ pvc on mine, for the sake of comfort.
Edited by rork, 24 September 2008 - 09:30 PM.