An odd Question

Double Tapper · February 18th, 2008, 16:52

I am working on a mod for my real action marker M4 to
fire 6mm airsoft,C02 is around 800psi,I need to drop the
psi down to what AEG would put out.My question is,
what psi dose a AEG fire at in stock form?.

Double Tapper · February 18th, 2008, 19:16

Thanks mack_silent,I had a theory that a AEG would fire
between 80-120 psi,as my gbb uses propane at 100psi.
I had planed to use regulator between the 45g tank and
the marker.I was trying to get a base figure on a AEG to
to set my primary pressure.At present,my 45g tank will
fire 120 rounds of 43cal. rubber rounds.Firing 6mm will
require a fraction of the pressure to around 300 rounds.
I will be using the M4 marker in the pic for the testing.
[IMG]

[/IMG]

Double Tapper · February 18th, 2008, 22:42

Well I guess 1 answer is better than being flamed.
I'll just carry on and mod my RAP4 M4 marker.:banghead:

Savage Haggis · February 19th, 2008, 02:10

Your question, not so odd.

THIS... is an odd question...

"Where does the white go when the snow melts?"

Double Tapper · February 19th, 2008, 10:41

It's odd for the reason I'm asking for the psi of a Aeg.
Not a question I've seen asked.

ILLusion · February 19th, 2008, 21:06

The syntax of your question is a bit odd, which is why you've never seen it asked before. You're asking for a value that is not easily calculated, when you consider that AEGs are powered by electricity to crank a spring-powered piston. Compression occurs between the piston head and the cylinder head and is then ejected through an air nozzle.

The power source is mostly in the spring, but the "psi" output is also highly dependent on the piston head.

Airsoft guns typically have their output measured at the muzzle in FPS - a reading of the velocity of the projectile as it leaves the barrel in feet per second.

Automatic Electric guns in Ontario are typically limited to 400fps at outdoor fields (it could be higher or lower, depending on the game host) and that measurement is made with 0.20g BBs and the work put on the BB is 1.48Joules.

Because gas weapons register output differently as the weight of the projectile goes up or down, here is a general limit of calculations you should be measuring with:

If you are shooting a 0.12g BB, 1.48 Joules of output would be ~ 517fps
If you are shooting a 0.20g BB, 1.48 Joules of output would be ~ 400fps
If you are shooting a 0.23g BB, 1.48 Joules of output would be ~ 373fps
If you are shooting a 0.25g BB, 1.48 Joules of output would be ~ 358fps
If you are shooting a 0.28g BB, 1.48 Joules of output would be ~ 338fps
If you are shooting a 0.30g BB, 1.48 Joules of output would be ~ 327fps
If you are shooting a 0.36g BB, 1.48 Joules of output would be ~ 298fps
If you are shooting a 0.40g BB, 1.48 Joules of output would be ~ 283fps
If you are shooting a 0.45g BB, 1.48 Joules of output would be ~ 267fps

FPS is typically measured with a chronograph.

You'd have to fire through a chronograph while adjusting your PSI accordingly to meet the field regulations.

Tex · February 19th, 2008, 21:24

may I ask why not just buy the airsoft conversion from rap?

ThunderCactus · February 19th, 2008, 21:27

I guess you'd have to ask someone with the proper measuring tools and a GBB rifle?

Bowers · February 19th, 2008, 21:27

Quote:

Originally Posted by Tex

may I ask why not just buy the airsoft conversion from rap?

i dont think u can use regular 6mm

wildcard · February 19th, 2008, 22:16

Quote:

Originally Posted by TCSF-Bowers

i dont think u can use regular 6mm

yes you can or you can use their bb's with fins but the regular bb bastards version are perfectly fine

Bowers · February 19th, 2008, 22:29

Quote:

Originally Posted by wildcard

yes you can or you can use their bb's with fins but the regular bb bastards version are perfectly fine

oh rightio my bad

Double Tapper · February 20th, 2008, 00:54

I don't want to use a shell catcher which is what the
rap bb system uses.I also don't want a jac ststem with the
hose.I want to use a gas system without using shells.
I will be able to use this rain or shine and not worried
about water.This design will sound nice when fired.
I can always fall back on my AEG for cooler weather.
The rap 6mm kit is cheap and comes with no evidence
of its ability work as claimed.For all I know,the 6mm could
roll out barrel like the 177.bb kit I have from them,I instead
converted it to a 177.pellet and it works,but I had to mod
their system to get it to fire their 177.bb's.
Thanks for the input guys.

Ronan · February 20th, 2008, 01:01

Quote:

Originally Posted by Double Tapper

I don't want to use a shell catcher which is what the rap bb system uses.I also don't want a jac ststem with the hose.I want to use a gas system without using shells.

I will be able to use this rain or shine and not worried about water.This design will sound nice when fired. I can always fall back on my AEG for cooler weather. The rap 6mm kit is cheap and comes with no evidence of its ability work as claimed.

For all I know,the 6mm could roll out barrel like the 177.bb kit I have from them,I instead converted it to a 177.pellet and it works,but I had to mod their system to get it to fire their 177.bb's.

Thanks for the input guys.

Fixed.

wildcard · February 20th, 2008, 03:51

Quote:

Originally Posted by Double Tapper

I don't want to use a shell catcher which is what the
rap bb system uses.I also don't want a jac ststem with the
hose.I want to use a gas system without using shells.
I will be able to use this rain or shine and not worried
about water.This design will sound nice when fired.
I can always fall back on my AEG for cooler weather.
The rap 6mm kit is cheap and comes with no evidence
of its ability work as claimed.For all I know,the 6mm could
roll out barrel like the 177.bb kit I have from them,I instead
converted it to a 177.pellet and it works,but I had to mod
their system to get it to fire their 177.bb's.
Thanks for the input guys.

i've used mine in a downpour and the shittiest freezing rain it worked fine until the wind got a little strong for the bb's and if you plan to use the the gun without a line connecting to a separate tank then you just have a very limited power supply.
If you do get the RAP4 airsoft conversion do yourself a favour and get the ones with a hopup if all else fails then go back to the AEG, running a gas set up will be alot of fun but be prepared to do a lot of work and carry more gear

Hectic · February 20th, 2008, 09:34

The shells are so cheap you can just lose them and you dont have to use a remote line then Co2 is in the stock.
http://rap4.com/paintball/os/rap4-airsoft-c-261.html
Good luck.

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February 18th, 2008, 16:52	#1
Double Tapper Trader rating Join Date: Jul 2006 Location: The land of the over regulated and the banners	An odd Question I am working on a mod for my real action marker M4 to fire 6mm airsoft,C02 is around 800psi,I need to drop the psi down to what AEG would put out.My question is, what psi dose a AEG fire at in stock form?.

February 18th, 2008, 19:16	#2
Double Tapper Trader rating Join Date: Jul 2006 Location: The land of the over regulated and the banners	Thanks mack_silent,I had a theory that a AEG would fire between 80-120 psi,as my gbb uses propane at 100psi. I had planed to use regulator between the 45g tank and the marker.I was trying to get a base figure on a AEG to to set my primary pressure.At present,my 45g tank will fire 120 rounds of 43cal. rubber rounds.Firing 6mm will require a fraction of the pressure to around 300 rounds. I will be using the M4 marker in the pic for the testing. [IMG][/IMG]

February 19th, 2008, 21:06	#6
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	The syntax of your question is a bit odd, which is why you've never seen it asked before. You're asking for a value that is not easily calculated, when you consider that AEGs are powered by electricity to crank a spring-powered piston. Compression occurs between the piston head and the cylinder head and is then ejected through an air nozzle. The power source is mostly in the spring, but the "psi" output is also highly dependent on the piston head. Airsoft guns typically have their output measured at the muzzle in FPS - a reading of the velocity of the projectile as it leaves the barrel in feet per second. Automatic Electric guns in Ontario are typically limited to 400fps at outdoor fields (it could be higher or lower, depending on the game host) and that measurement is made with 0.20g BBs and the work put on the BB is 1.48Joules. Because gas weapons register output differently as the weight of the projectile goes up or down, here is a general limit of calculations you should be measuring with: If you are shooting a 0.12g BB, 1.48 Joules of output would be ~ 517fps If you are shooting a 0.20g BB, 1.48 Joules of output would be ~ 400fps If you are shooting a 0.23g BB, 1.48 Joules of output would be ~ 373fps If you are shooting a 0.25g BB, 1.48 Joules of output would be ~ 358fps If you are shooting a 0.28g BB, 1.48 Joules of output would be ~ 338fps If you are shooting a 0.30g BB, 1.48 Joules of output would be ~ 327fps If you are shooting a 0.36g BB, 1.48 Joules of output would be ~ 298fps If you are shooting a 0.40g BB, 1.48 Joules of output would be ~ 283fps If you are shooting a 0.45g BB, 1.48 Joules of output would be ~ 267fps FPS is typically measured with a chronograph. You'd have to fire through a chronograph while adjusting your PSI accordingly to meet the field regulations. __________________ *Advanced Airsoft Armaments and Enhancements* Quick to the gun, sure of your grip. Quick to the threat, sure of your shot. Diligentia, Vis, Celeritas Accuracy, Power, Speed

February 18th, 2008, 22:42	#3
Double Tapper Trader rating Join Date: Jul 2006 Location: The land of the over regulated and the banners	Well I guess 1 answer is better than being flamed. I'll just carry on and mod my RAP4 M4 marker.:banghead:

February 19th, 2008, 10:41	#5
Double Tapper Trader rating Join Date: Jul 2006 Location: The land of the over regulated and the banners	It's odd for the reason I'm asking for the psi of a Aeg. Not a question I've seen asked.

February 19th, 2008, 21:24	#7
Tex Trader rating Join Date: Feb 2003 Location: Abbotsford, B.C.	may I ask why not just buy the airsoft conversion from rap?

February 19th, 2008, 21:27	#8
ThunderCactus Not Eye Safe, Pretty Boy Maximus on the field take his picture! Trader rating Join Date: Feb 2007	I guess you'd have to ask someone with the proper measuring tools and a GBB rifle?

February 20th, 2008, 00:54	#12
Double Tapper Trader rating Join Date: Jul 2006 Location: The land of the over regulated and the banners	I don't want to use a shell catcher which is what the rap bb system uses.I also don't want a jac ststem with the hose.I want to use a gas system without using shells. I will be able to use this rain or shine and not worried about water.This design will sound nice when fired. I can always fall back on my AEG for cooler weather. The rap 6mm kit is cheap and comes with no evidence of its ability work as claimed.For all I know,the 6mm could roll out barrel like the 177.bb kit I have from them,I instead converted it to a 177.pellet and it works,but I had to mod their system to get it to fire their 177.bb's. Thanks for the input guys.

An odd Question

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