this is my first instructable. It is not very powerful but it will shoot about 15ft when shooting little green rods.
oh and sorry about the bad pictures.
Step 1: Pieces You'll Need
2 green(including 1 for ammo)
2 little blue spacers
1 long rubber band(works best with thin bands)
Step 2: Barrell Part 1
its pretty self explanitory just build what you see.
Step 3: Barrell Part 2
just add the 2 blue spacers and an orange connector with a green rod on the end to the rods then add the rest of the green pieces in the same way as the last 6.
Step 4: Ram Rod
there is NO need to explain this step
Step 5: The Handle
add the 4 blue rods as shown
Step 6: Applying the Rubber Band
insert the ram rod in to the barrell then take the large rubber band and put 1 side over the remaining red rod sticking out of the end of the barrell then wrap it around the gun as shown and put the other side of the band on the other red rod.