![Posted Image](http://i339.photobucket.com/albums/n466/TrumbullTheDog/MrTrumby630.jpg)
Take the tank, and rip off the tubing that the water squirts out of, then dremel it a little
![Posted Image](http://i339.photobucket.com/albums/n466/TrumbullTheDog/MrTrumby633.jpg)
![Posted Image](http://i339.photobucket.com/albums/n466/TrumbullTheDog/MrTrumby634.jpg)
There are also a few things in the way of the barrel.
![Posted Image](http://i339.photobucket.com/albums/n466/TrumbullTheDog/MrTrumby635.jpg)
![Posted Image](http://i339.photobucket.com/albums/n466/TrumbullTheDog/MrTrumby636.jpg)
Glue on a CPVC coupler, and put in a barrel long enough to stick out of the gun.
![Posted Image](http://i339.photobucket.com/albums/n466/TrumbullTheDog/MrTrumby991.jpg)
Finished, with a size comparison.
![Posted Image](http://i339.photobucket.com/albums/n466/TrumbullTheDog/MrTrumby-1.jpg)
Ranges are terrible, which was expected due to the slow valve opening and tinniness of the tank. 100 pumps and a ramrodded streamline got ranges of 80 ft at a 45 degree angle with a lot of corkscrewing, took about 2 minutes to prime, but keep in mind this mod was about making a water gun shoot darts, not to get awesome range and practicality.
Ranges might be better if I attach the pump directly to the tank, avoiding the yellow tank entirely, but I don't have any tubing connectors to try it out.