Okay, so for my first instructable, i wanted to do something small.
One day, i was fooling around with my knex, and then i thought of it! It's the best way to start out a knex battle. Put three rubberbands on, and ask your friend to put the fourth one on, and then, it explodes in his face!LOL!

Step 1: Parts List!

okay, here you will find all the knex pieces you need(and rubberbands!). If you don't have enough knex for this, i dont know why you're on this site.

Step 2: Building It!

ok, build it. if you have any questions, then quit knex!

Step 3: Rubberbands!

the rubberbands!

Step 4: The Aftermath

ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttthhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaaaaaaaaaaaaaaaaaaaaaaffffffffffffffffffffffttttttttttttttttttteeeeeeeeeeeeeeeeeeeeeeerrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaattttttttttttttttttttttttttttttttttttttttttttttthhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!