Do NOT use Oxygen for GBB!!!

[Schoolboy]

Still Was a dumb idea in the first place, pure oxygen is always dangerous.

[vincent1990]

Thanks for the ansswer!!! Almost gonna blow myself up

[bean]

People also need to look at gases being made into a liquid. Propane does this at a significantly lower pressure then oxygen in a liquid. Otherwise you would be lucky to get three shots off with just oxygen at the same pressure as propane.

[zollen]

Propane itself is not flammable unless it mix with roughly "equal" amount of oxygen. Oxygen is always the key of ignition.

Oxygen + fuel + spark = fire!!!!

[coach]

Thank you Bean. I was avoiding posting that prior to getting to a PC to pull up info on liquid propane vs. liquid oxygen but here I go without. (still on my iPhone so excuse me if I ramble and possibly make mistakes)

When GBB mags are filled, you invert the propane tank to transfer it as a liquid. If you think you are getting mostly gas, try filling your mag with the tank upright and not the power and number of shots taken.

Now if you use liquid oxygen, it's going to be quite cold. It's boiling point is like -180C. As it vaporizes during a shot, it will likely freeze your pistols internals and destroy itself mid cycle if it can get that far. With compressed oxygen, if you could get it into your mag, it is possible that it will react with any lubricant or rubber and burn. Add the fact you have an abundant source of oxygen, it will go boom!

The amount of psi required to store compressed O2 is ridiculously high. The volume in your mag to store O2 as a gas would be so little that it wouldn't be worth it. The discussion of using CO2 is also constantly brought up and it just can't be done. You will blow a seal or have a nice explosion.

Liquid propane simply requires lower psi to maintain it in liquid form. While in liquid form it takes up less space and ultimately will provide you with more volume as it vaporizes.

I will edit this if required.

[Rooster]

I didn't take the time to read this only because I wanted to say IMMEDIATLY

DO NOT USE OXYGEN IN A GBB SYSTEM!!

Compressed Oxygen will explode when introduced to any oil. Be that grease, silicon oil or anything else. There is NO spark needed to ignite the explosion.

Take this from a Welder who has been handling compressed gases for years!! It's day 1 stuff at welding school.

PLEASE DON'T DO IT!!

[Deadpool]

Originally Posted by Rooster

I didn't take the time to read this only because I wanted to say IMMEDIATLY

DO NOT USE OXYGEN IN A GBB SYSTEM!!

Compressed Oxygen will explode when introduced to any oil. Be that grease, silicon oil or anything else. There is NO spark needed to ignite the explosion.

Take this from a Welder who has been handling compressed gases for years!! It's day 1 stuff at welding school.

PLEASE DON'T DO IT!!

You should've.....It's al already been said...all of it.

[Rooster]

Haha,
Ok I just read it and see that it has all been covered.

Just wanted to get in quick before someone blew off a finger or two.

[mr_nuts31]

well a better question would be if a gbb can use compressed air?

[vincent1990]

Thanks for everyone's advice!! Glad that i asked the expert before i did something stupid.

[AngelusNex]

ONLY reason Propane is safe is because it's under pressure in an oxygen free environment, all flame/explosion require oxygen, making pure oxygen one of, if not the least safe compressed gas.

[kullwarrior]

Originally Posted by mr_nuts31

well a better question would be if a gbb can use compressed air?

Answer is yes, you need a regulator from HPA tank and an adapter into the charging nozzle.
YouTube- KSC HK USP Match


Also Oxygen has EXTREMELY high psi at room temperature converting it from liquid to gas, it far exceed CO2.
General rule of thumb the BIGGER the molcular mass the higher the melting point and the lower the pressure.
Propane is C3H8 =44.11g/ mol
Where butane C4H10 = 58.12 g/mol
There are exceptions to that rule, (bond strength between molecule) but generally that's how it goes


I believe if you want higher pressure consider R-410A I think, Gun gas forum had people used that. Works pretty well in their Pro-Win mags, trouble is getting that gas is impossible in Canada basically.

See here http://www.gasguns.info/forum/viewto...3091&hilit=hfc

[Schlyder]

Originally Posted by Rooster

Haha,
Ok I just read it and see that it has all been covered.

Just wanted to get in quick before someone blew off a finger or two.

hahaha I am a welder too. As soon as I saw this thread I posted up a Do Not...

Also I reported it so the title gets edited to DO NOT USE OXYGEN IN GBB and so it may get stickied, hopefully to prevent some dumbass from blowing a hand off.

[Lord of Rebirth]

Also pure oxygen can mess with your head and will massively accelerate fire. Oxygen explosions are actually just super accelerated fires. I remember messing around in metal shop with oxy/actylene torches....

[surebet]

I've seen some external rigs for pistols and GBBRs that interface... something, probably replacing the fill valve with an adapter for a macroline to a compressed air tank, like the ones for paintball.

It would have advantages, compressed air is super constant, so shot consistency is perfect. Gas guns also get to play out in the winter since output isn't affected by the cold, so it would almost be the best solution to shot in the snow.

However just like an AEG, some models would be prone to explode themselves apart. Kinda. Cold metal becomes brittle and shatters.

Neat idea, but unlike classic airsoft guns that have a single line from the gun to the external tank, lines have to plug to the mags, so you either need a quick disconnect on each mag, carry a single mag or end up with an octopus like setup of multiple lines to your mags.

... still would like to try it out.