The original writeup was here, with the determination that there was little potential. I strongly disagree.
You start by opening up. Both plastic handle pieces unscrew, leaving the tubes for dissection. The correct way is to saw through the cardboard right where it meets this piece. Cut just enough to take off the cardboard, and you'll have a surface for resealing later.
Here's a size comparison. This thing severely needs a straw mod if it wants to build significant pressure of any kind.
Cut to length (I don't have the measurement off hand) 1/2" CPVC for the length of the inner tube. On the end, place a small section of 1/2" PVC, with a shaved'down 1/2" to 1" bushing. Fit this into the large end of the blaster. On the ammo end take a small length 1/2" PVC with e-tape around it and hammer in place. You have now killed a ton of dead space.
Go back to your initial cut, wrap e-tape around the plastic inner rim (trimming as necessary) until the cardboard tube just slips over. Use hot glue or goop to seal it back into place.
Now you can do the usual (cut off the air restrictor, add a coupler, etc.). Also glue over the foam on the backside of the blaster, as in the previous mod.
I haven't experimented with the barrel lengths, but using single bb 1.5" darts, a 12" barrel, and as close to level firing as possible (let's just say at a 5 degree angle, to be safe. That's the nature of push-pull...), my darts are landing from 70' to 90+'. With a bit of testing (and perhaps stronger arms than myself), you should be able to break 100'.
And there you are; a fairly useless blaster that's no longer so useless.
Edited by Buffdaddy, 17 August 2010 - 11:09 AM.