BrittLiv demonstrates her specially Nerf Vulcan gun modified into a fully automatic sentry cannon. Not only can the computer controlled turret shoot automatically at specified targets, but it can also aim completely by itself. <br /><br />For nerds daring enough, she has posted the full instructions and schematics online. <br /><br />http://www.youtube.com/watch?feature=player_embedded&v=C70R7oo4jMc