Knex Heavy Crossbow
My heavy cannon version 2. Okay some pros 300ft range, portable, deploy able, and stopping power.
***UPDATE 11/1/11***
I am currently just finishing up a handheld version of this gun which is by the way so awesome. Some features of the handheld version will be a true trigger, smaller size, same size ammo, and distance. The new version will also be a bit more piece friendly. It will be posted on 11/8/11 which is exactly 1 year after I had posted my first ever Instructable, and joined instructables!
***UPDATE 11/1/11***
I am currently just finishing up a handheld version of this gun which is by the way so awesome. Some features of the handheld version will be a true trigger, smaller size, same size ammo, and distance. The new version will also be a bit more piece friendly. It will be posted on 11/8/11 which is exactly 1 year after I had posted my first ever Instructable, and joined instructables!