Not to sound stupid but what is a expansion chamber and what does it do? Is it easy to build?
:wav:

Posted: 02/19/2010 3:58 AM Post subject: http://www.spudfiles.com/forums/bbmg-airsoft-magazine-and-hopup-design -t16151.html and my own.. I love your design but i have a few questions. What is that blue thing on the end of the inflator? What did you use to connect the inflator to the hop up with? A...

Ok i have come up with an awesome idea but have a few questions. I want to build a inline vortex sub machine gun and want to power it with a 12 gram co2 cartridge in the handle. my questions are: What do i hook the co2 cartridge up to? What trigger should i use? What hose thingy should i get to hook...