It is my mini gun pen.
It is very cheap and strong.
It is very easy.

Step 1: Material

pens, springs, tube,stopper and bullets.

Step 2: Add Springs + Stopped + Tube

Add spring + spring for make a big spring and paste the stopper and tube.

Step 3: Screw and Play

Screw the stopper on the pen and load the bullet.
For fire, pull back the bullet and then leave.
<p>If any one want ti see mine then he or she could go to</p><p><a href="http://www.instrucables.com/id/pen-gun-15/" rel="nofollow">http://www.instrucables.com/id/pen-gun-15/</a></p><p>it fires ink cartrages up to 80 feats.</p>

About This Instructable




More by andysus:Soldering Station for 3D Makers Mini Pen Gun 
Add instructable to: