I setup a CO2 nailgun system a little bit ago and thought I would post some info for others that may want to do the same.
I bought a 150 PSI fixed CO2 regulator from http://www.wheelersoffroad.com/co2systems.htm (on the bottom of the page $37.50 plus shipping I think the shipping was like $20)
I then bought a few fittings and another adjustable regulator from HD (about $30)
I bought 2 different regulators, the first one did not work right it was the little one with the little knob. I then bought a little bigger one with the plastic knob like on most compressors and that one works great.
I bought a 2.5# CO2 aluminum cylinder and a 15# cylinder (total for both and both filled about $170) the 2.5# is an aluminum tank and the 15# is a steel tank.
I then just cut a short hose from one of my 100’ hose.
I have run over 50 nails through my Hitachi NR83 from the 2.5# cylinder. And it fits in my nail pouch on the side. Not something that I would use EVERY day. BUT when you only need to come and put in some blocking, do a few pieces of trim… etc. You cant beat it because you can use ANY air tool on it including airing up your truck tires.
I would like to see if I can get a regulator to fill my 2.5# tank from my 15# tank so I don’t have to take it to a shop every time I need it filled.
If anyone wants more info let me know. OR if you know of a way I can fill my 2.5# from another tank let me know.
Couple of pics.