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HPA mags for GBB's - is it possible?

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#1 RyszardRudy

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Posted 24 July 2014 - 01:49 PM

Hi guys, any of you know, is it possible to make a mag for GBB that coul store enougth HPA to use instead of gas?
Honestly, I don't know mutch about HPA, but having a tank attachet to a rifle is like having a fly in a soup.
I know that HPA storage tank is not the only thing that need. I think, correct me if I'm wrong, need some sort of pressure regulator. Is there any way to fit this in one mag?

#2 Pyro_Buster

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Posted 24 July 2014 - 02:27 PM

I don't think the mags are strong enough to hold the pressure needed to empty an entire mag of BB's.

#3 StealthTaskForce

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Posted 24 July 2014 - 03:39 PM

There's somebody that I follow on Instagram that is converting his 93R into an HPA from a GBB. I know that if it were possible, it would take some MAJOR mods. As in, taking apart the mag, putting in its own storage tank to hold the pressure, and then going from there. Otherwise, you would just have to research how much PSI a GBB mag can hold without bursting, and then see if the air in the mag can empty it. I frankly don't think that it would be worth it. With all the money that it would take to do all of that, you're better off with just sticking with what works and making a rig that looks cool that handles the tank.

#4 RyszardRudy

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Posted 24 July 2014 - 11:32 PM

Sorry, I mean not "converting" but making new one, some innovation. What I mean, to put in a some sort of small tank, and see how much air it can hold, if it be enough to shoot at least 60rds low-cap, that would be a win. Although I would like to have 120 mag. But looking at HPA tanks, and their sizes, I just having doubts that there will be enough air.

#5 kwaispro727

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Posted 28 July 2014 - 06:27 AM

As Stealth said, I don't think you will be able to get enough air in the magazine, filling the actual mag or putting a tank inside of it.  I'm sure the magazines are big enough to hold all the air but not strong enough to take the pressure.  You would probably need to do some pretty serious mods, like tempered steel to reinforce the inside and some sort of steel case on the outside, and I have no idea where you are going to fit that stuff on a handgun.  Possibly on the LM4 or AK74.

I'm sure the people engineering these guns have thought about HPA, but have gone with green gas for just these reasons.  But hell, if you think you can do it, try it, I would love to see pictures of what you do and of course the finished job.

#6 Dial Tone

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Posted 16 August 2014 - 10:50 AM

On the Facebook page I Play Airsoft, there is a user named CQB Russian based out of Southern California.  All his guns, pistol and rifle are converted into HPA with quick releases on the bottom.  He said the conversion was easy.

#7 StealthTaskForce

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Posted 17 August 2014 - 09:57 AM

Then what would be great, is if you got him to make an account and post on here how he did it. Because if he wears a tank on his back or the gun or something external, that's not what Rudy wants. He wants to make a GBB type gun with pressurized air in the magazines rather than a tank. So if that's not what that guy did, then his conversion won't be easy.

#8 Dial Tone

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Posted 21 August 2014 - 05:46 PM

Ok gotcha.  Well theres a reason why HPA tanks are significantly larger than CO2 tanks: The high pressure.

You will need a fairly large tank to hold high pressure, something as small as a pistol or AR mag gas reservoir cannot do.

#9 StealthTaskForce

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Posted 21 August 2014 - 07:03 PM

Alright so then what you meant by his switch is he went to a fusion engine? Because the way I understood you the first time reading it, was that he had done what Rudy wants to do. When I just re read it I saw that you said he put in quick releases at the bottom, so I'm going to assume that you meant quick release for the nozzle for a Polarstar? If I'm misunderstanding you, please clarify so we can be on the same page lol

#10 Dial Tone

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Posted 22 August 2014 - 12:02 PM

This is what I meant.  Which what might not be what was being asked for...



The video shows the adaptor installed to a pistol mag.  CQB Russian has done this to his AS mags.

#11 StealthTaskForce

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Posted 22 August 2014 - 05:15 PM

What Rudy wants to do, is to put the tank in the magazine to eliminate the need for an external tank and hose. That mod is pretty cool though

#12 gcw360

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Posted 22 August 2014 - 05:28 PM

View PostDial Tone, on 21 August 2014 - 05:46 PM, said:

Ok gotcha.  Well theres a reason why HPA tanks are significantly larger than CO2 tanks: The high pressure.

You will need a fairly large tank to hold high pressure, something as small as a pistol or AR mag gas reservoir cannot do.
Because CO2 can be more easily. and less expensively,  isolated and compressed into a liquid to allow for greater mass to be contained in a much more compact volume.  This is not so easily accomplished with a mixed gas such as air which is comprised of mainly nitrogen but includes O2 and other gases.





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