I am about to order a Tokyo Marui Glock 26 and need gas.

[VogonFord]

The thing is that it's a crapshoot with plastic guns on green gas. Even with the exact same model of gun, sometimes on green gas the slide will crack on the first magazine, while others will go years without issue. So it's not that it's for sure going to die, it's just more likely. However, even on HFC134a the slides can crack, it's just lest likely. Think of it as gambling.

[Archangel 06]

I had an HFC G26, which is a Chinese clone of the TM, and it ran fine on Green Gas and Propane up until I slid down a hill and it popped free from my holster. In fact, I still have two mags for it that are perfectly good. One is the stock compact mag, and one is full-size. I could cut you such a deal because they are just sitting around my house. PM me if you're interested.

[GacktC]

OK, nothing related the the green gas or the propane here.
I recieved my TM G17 customs today, it looks sexy,it has full Glock trades & takes propane fine.
Cons= does not feel as good as the KSC/KWA, really plastic feel, plastic slide is thin! It has a 100% toy gun/Gundam model feeling..disregard the price tag.
Try to find a KSC G26 will be a better choice, WGC has them for around $100.