This is my current build of the air gun:
5mm ID of barrel.
![Image](http://oi44.tinypic.com/2vuy3ya.jpg)
Getting about 740 FPS+- (chronied with sound and good mic) at 300 PSI with this.
Damage:
![Image](http://oi41.tinypic.com/10xxb0m.jpg)
Build goal:
![Image](http://oi44.tinypic.com/28wmof7.jpg)
Now, I have about a $200~$250 budget, cannot get a paintball CO2 tank where I live at, so I need to get an adapter for that sodastream bottle too.
An adapter costs about $70. The adapter makes the screwing on the bottle like the one on a paintball CO2 tank, so I can use anything that will fit the paintball tank.
Was thinking about getting this part:
http://palmer-pursuit.com/cart/female-s ... qlg38dpin1
I need the pressure inside the sodastream bottle to be reduced down to 300-600 PSI (NO MORE, I am scared the gun will explode).
Any other suggestions are welcome!
Been looking for a solution for a long time now..