Crayola barrels are a Nerf Gun modifier's best friend (next PVC, Duct
tape, and a hot glue gun..) They dramatically increase the range on micro-firing dart guns (you can see them used excellently
in an AT 2000 on my mods page.) They make for excellent opportunities for breech loaders as well, and help you speedload
your micro-firing, 1/2" PVC-barreled nerf guns. You need a "Fat" size crayola marker, and a pair of pliers. That's
it. To start, pry the back end cap off of the end you don't write with. It should be pretty easy. Now, take your pliers and pull, bend, twist, etc.
until you get the entire front end off. All of the marker that the cap covered when it was on should be removed here. Take out the ink cartridge cylinder thinghy, and clean out the new barrel with some water. Dry off the outside, point the barrel at your sink, and blow
through it a few times to get it dry inside. Now, load a micro (store-bought micros seem to fit better, but homemades will go in most of the way as well) into the crayola barrel.
The dart's back end should go into the wider end of the barrel, and the narrower end of the barel should be attached to the
gun. These babies will improve any PVC-barreled micro-firing blaster that you have.