(v2) The Clothespin Pocket Pistol "3d printed!" V2

Version 2.5 is out, find it here:
http://www.thingiverse.com/thing:248032

This is version 2 of "The Clothespin Pocket Pistol"

All credits still goes to:
Source: http://www.youtube.com/watch?v=vC2BSb9MZYc
Source: http://www.instructables.com/id/How-to-Make-a-Clothespin-Gun/

It`s really simple to print and it shoots just like V1

Also thanks to Jaidyn Edwards for reviewing my design
http://www.youtube.com/watch?v=N8kuE_cFl2k

Update:
Added a version without rifling in the b