Shoots yellow rods, max. capacity 20. Colors and rubber band tensions vary. Modify as nessesary.
*See below comments; I mistakenly re-posted this in 2009. Please refrain from freaking out.*
Step 1: Get pieces
*can be substituted for similar pieces
Step 4: Make trigger
Step 13: Attach string and rubber bands
Step 14: Attach automatic feed...
Step 15: Prepare to fire
If it jams, pull back the pin until it locks. Check that the ammo is in place to be fired, and try again.
If the pin doesn't lock, adjust the rubber band shown in step 13, picture 7.
Note: the more ammo you put inside, the less well it works.