Brent,
Is propane any better on the environment, or personal health? I would imagine that each have their drawbacks. I've read about Duster Gas being used in the same guns as 134A, but on the same token....I cant figure out what adapters are intended for it. Propane adapters are easy to find, guess I may have to drop another couple hundred and upgrade to a metal slide if I cant find what I need, lol!