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issue guarder high flow output valve CO2

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Hey guys, 


I am new here.. basicallly found this forum as I was looking for a good allround forum to ask a specific question and maybe hang around. 

I have a kjw full metal M9 with CO2 magazine and setup, with this gun I have been using some ramaining  parts I used to upgrade my of a former M9A1 marui, among which a high percision barrel I modified.

unfortunately this includes a guarder high flow output valve that is not CO2 suitable (see link below) 

never the less, I am stubborn and I tried anyways. after waisting 4 CO2 cylinders I gave up. the real issue is that once the cylinder is in the output valve won't open.. 


now my question is the following: 

1) what makes a output valve not suitable for CO2 (can I modify this into CO2 suitable maybe). 

2) why won't it open? does it freeze solid maybe upon entering the cylinder. 

any thoughts are ofcourse welcome.. but please state if it is actual knowledge  or thoughts. 





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"High Output Valves" are a scam.  It's a fleece the new player product and this is why.

Nothing in Airsoft is made to a Standard (outside of Japan).  If Nothing is Made to a standard.  what would deem a item to be normal and what would be an "upgrade" and an improvement.  Answer....NOTHING!  In most cases the "upgrade" part is a lateral inperformance.  In many cases...it's a downgrade and on rare cases...it is an upgrade.  

So...over 20 years of USA Airsoft...nothing is made to a standard and you get what you pay for.

As for why CO2 does not work with a GG Valve...it's called "design" and Physics.

A GG valve is designed for operating pressures around 115psi.  A CO2 valve is designed for operations around 820psi.   Do you see why this higher pressure maybe keeping your valve "shut"?

BTW...CO2 is a horrible gas source for Airsoft.  There are no advantages to using it in any way regarding: Cost, performance and product durability.

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