The Pressure Tester Pen Gun

this is mostly a dumb toy but it is dangerous and can hurt people you didn't get this from me

Step 1: Materials

this pen gun has a numerous amount of modifications you can make.....but after you take the tire tester apart throw away the little round thing and keep every thing else...you need super glue

Step 2: Glue and Finish

just drop the spring down the end that wont fly out and super glue it in and you should be finished

Step 3: Fireing

launch by using things like unsharpened pencils and any thing with out a point you fire by simply pressing down with your thumb and letting go