KNEX Tube Gun

this is my tube gun (minus the rubber band)

this is what you need:
3 blue rods
2 white circles
1 black half connector
1 grey end peice
1 yellow half circle
1 rubber band

this is the frame

this is the hammer

the rubber band goes on these two parts

have fun! dont get caught shooting people or ur mom will take it away! (like me)