Bolt Action Blowgun

This is the Bolt Action Blowgun, a 3D printed gun that lets you shoot multiple rounds with a magazine capacity of 4 rounds!

The only things you need are a PVC pipe with 20mm outer diameter and 17mm inner diameter, which will be the barrel, bolt and stock, a tiny piece of 1mm metal wire, a little pen spring, and a rubber band!

The rest of the gun is completely 3D printable!

The bolt has a guided travel, and it locks like a real gun, so rotating it is not only cool, it seals better the gun!
Also, if the rubber band you mount in the magazine is of the right size, the bolt will lock open with an empty mag

The design is easily customizable, so you can design flash hiders, sights, grips, different magazines and so on!

---Gun Test---
https://www.youtube.com/watch?v=mZOLv2WZP-0&list=UUWTzCtNMrdBBOWKIJSTQsig

---Bolt assembly---
https://www.youtube.com/watch?v=CK8Wp7uklts&index=2&list=UUWTzCtNMrdBBOWKIJSTQsig

UPDATE! 28/11/18
Now with a muzzle brake! Actually removes the