CO2 adaptors for green gas guns?

[LouisZimmerman]

I know that CO2 powered guns are illegal in Japan: I assume that this is the main reason why Airsoft uses other gases. I'm curious, however... has anyone ever seen/heard of aftermarket parts (not from Japan, obviously) that adapt green gas guns to 12 gram cartridges? Also, are there significant differences in the pressures of the two gases that would make such mods difficult/unlikely?

Louis

[surebet]

green (propane) goes to about 160 psi
CO2 goes to 800 psi

Boom.

To save costs, look around for propane adaptors.

[TokyoSeven]

Also its a good thing to consider that, there is a diffrence between Co2 guns and gas guns. Mainly in parts. Magazines are diffrent and internals would be sturdier on Co2 guns to withstand the punishment. This is not always the case but its a good thing to keep in mind.

[Caped_crusadar]

yes, ive seen some mags that use a CO2 bottle inside it, and functions the same way, but you need to lube your gun beacuse the CO2 will dry out your O rings

[LouisZimmerman]

That's quite the pressure difference between propane and CO2... means that any adapter would need a built in pressure reg, otherwise as surebet says, boom.
Just out of curiosity... any idea (roughly) how many mag fills one could get out of your average disposable propane camp stove bottle?

Louis

[TokyoSeven]

I have never actually kept count, but lets put it this way. I could use a whole coleman can all summer. You can get alot of mag fills out of one, and I mean alot! Its actually cheaper when compared to using those little Co2 catridges.

[The Saint]

It'll depend on your mag. I get, at the very least, 2 dozen fills for my P229 mags.

[surebet]

Just a quick note about the above pressures (which I couldn't be arsed to track down, so they aren't exact BTW but pretty accurate), they represent the pressure in which they will revert to liquid state.

Even if you pressurize your mags to only 160ish PSI with regulated CO2, since it's only gas it probably won't shoot a single time.

[LouisZimmerman]

Even if you pressurize your mags to only 160ish PSI with regulated CO2, since it's only gas it probably won't shoot a single time.

The reg would need to be part of the mag, which would mean a mag built specifically to handle CO2.
The general feel that I'm getting from this thread is that it's WAY cheaper to just go with fills from a propane bottle, and a lot less hassle too. The only reason that I can see to go with CO2 would be that it's non-combustable, and I get the feeling that this has never been an issue...

Thanks to everyone for all the info! 8-)

Louis

[Crunchmeister]

KJW do make a CO2 powered M9. I've been quite curious as to whether the CO2 mags would work in a standard KJW M9. More than likely, the regulator is built into the mag itself. Anyone have any experience with this?

[surebet]

Probably no reg, just a gun that can take the pressure.

GBBs are already fickle and demanding bastards, adding a regulator to allow the mag to eat CO2 would be about as feasible as trying to get a chainsaw to juggle bears. No, that wasn't dislexia.

Besides, the usual fill lasts for about 2 mag fulls of BBs, and a can does... a hundred plus fills? For 3$?

Propane + adaptor (40$ with oil and bonus parts) = win

As for the flamability of propane, just try not to shoot in a burning room or something. Seriously though, there isn't that much gas released so it wouldn't be too bad. Just don't stick a lighter to the barrel to be tacticool and have muzzle flash though.

[ILLusion]

Madbull makes a CO2 adapter with an airsoft nozzle.

But as already said on the rest of this thread, if your device isn't made to handle CO2, you'll blow it up in short order.

Besides that fact, because the CO2 tends to not go in to the mag in a liquid form, you wouldn't get more than 1 shot off it.

[tunabreath]

I'm curious... wouldn't CO2 have reduced cooldown issues, since it's reg'ed down, the pressure difference is proportionally less before/after you fire, so there's less cool down, right? CO2 can also go to lower temperatures before having expansion problems, right?

[surebet]

Originally Posted by tunabreath

I'm curious... wouldn't CO2 have reduced cooldown issues, since it's reg'ed down, the pressure difference is proportionally less before/after you fire, so there's less cool down, right? CO2 can also go to lower temperatures before having expansion problems, right?

Still, a proper regulator needs volume to do it's thing, and the level of miniaturisation require to shove it in a mag would be harsh.

Add to that that the fact that you would need to reshape the cylender to survive the higher pressure.

And again, for every day use, it's not like your average GBB runs out of gas before it expends all it's BBs, so...

If you'd trully require a regulated setup, just plus the intake valve into a regulated HPA tank. Perfectly stable at any temperature, and even a modest 47ci tank would last you until retirement.

[super_six_four]

Originally Posted by surebet

Probably no reg, just a gun that can take the pressure.

GBBs are already fickle and demanding bastards, adding a regulator to allow the mag to eat CO2 would be about as feasible as trying to get a chainsaw to juggle bears. No, that wasn't dislexia.

Besides, the usual fill lasts for about 2 mag fulls of BBs, and a can does... a hundred plus fills? For 3$?

Propane + adaptor (40$ with oil and bonus parts) = win

As for the flamability of propane, just try not to shoot in a burning room or something. Seriously though, there isn't that much gas released so it wouldn't be too bad. Just don't stick a lighter to the barrel to be tacticool and have muzzle flash though.

we also have propane adapters in stock for $25 each