Mini Shooter Project (Blaster)

Hello guys. Today I'm going to show you my tiny launcher. It is made from a clicky pen and it uses its spring. It shoots about 10 feet but it is a good range for its size. And it has a detachable barrel which is pretty cool. 

Note: This project is for entertainment purposes only. If you're going to make this project never shoot humans, animals and any living thing. It will not hurt but be careful.