This gun is an 8 shot semi-auto rubber band gun with a twist, its made entirely from K'NEX!!! When you think about it its a very simple mechinism, i came across it while i was trying to slow down the fire rate of a fully auto gun (the fully auto gun was more like a shotgun becuase of the high fire rate and small magazine).
stuff you'll need:
1) alot of K'NEX
2) a computer (to view this page)
3) hands (to put it together)
Step 1: Make the body of the gun
Well pretty straight foward, assemble the pieces the way they are in the picture. This part holds the firing mechinism in place.