Open chamber WE M4/Scar/PDW/G39/l85

[BG.Ghost8]

Originally Posted by Kos-Mos

You know that this is based on temperature and altitude right?

I will check what my rifle is set tonight, at least you will have a guideline.
Keep in mind that 1 turn = 50 fps (at least in my rifle, I had to open the valve 1 turn to go from 340 to 390)

Yeah i do, I just wanted a small guideline to work with. Place is usually around 25 degrees Celsius.

And thanks for the quick reply Kos-Mos

[kullwarrior]

Originally Posted by BG.Ghost8

Hey everyone!

Does anyone know the approximate height or amount of turns (from the closed position) of an open bolt NPAS adjustment, to get a we scar to shoot at 350 fps with .2's for chrono?

As well the inner barrel is the stock CQC one and using propane.

Any help is appreciated!

Thanks!

Depends, The WE Open-CHamber NPAS doesnt reall change FPS much until the base of the NPAS parabola is at the nozzle port end.
1 Turn from closed fps changes...is within errors (mag cool down, inconsistency)
1 turn from fully open (where the upper NPAS is contacting the lower's 2nd O-Ring) change drop by 100fps.

[Kulas77]

hope I am not on the wrong thread.. but, Anyways nood got some questions..

WE PDW OB

Nozzle Return Spring and the pin that attaches this to
the nozzle carrier.. They are hard to find.(mostly out of stock.)

any place on where to buy them? generic spring and pin that i can buy them some where?

[Stealthee]

That would be hard to find. I would just buy a set of new WE loading nozzles.

[Kulas77]

Yeah.. Thats what I thought.. but, i'm not sure if that comes with the Nozzle
Return Spring..

[Stealthee]

When I bought mine, it came with everything (floating valve, nozzle return spring, etc.).

[Kulas77]

http://www.evike.com/product_info.ph...ducts_id=38128

This assembly.. yeah?

or

http://www.evike.com/product_info.ph...ducts_id=38200

This Complete Assembly.. (out of stock.)

do you know where I could get them?

[Towe1ey]

You can get the nozzle from airsoftparts.ca. It comes with the return spring and o-ring. On top of that you've got yourself a spare nozzle in the event one of them breaks.

[Kulas77]

Thanks for your help guys...

[chuck ram]

After looking around I wasn't able to find a solid answer. I was wondering if a set of madbull MK18 DD RISII is compatible with the WE open bolt m4.

[Stealthee]

Originally Posted by chuck ram

After looking around I wasn't able to find a solid answer. I was wondering if a set of madbull MK18 DD RISII is compatible with the WE open bolt m4.

IIRC, yes but you need a separate barrel nut as the ones that come with the Madbull have different threads.

[chuck ram]

Originally Posted by Stealthee

IIRC, yes but you need a separate barrel nut as the ones that come with the Madbull have different threads.

Where could I find the correct barrel nut?

[redneck12]

The barrel nut that comes with the Madbull Mk 18 rail works fine with the WE M4, I just highly recommend getting the DD barrel wrench or borrowing one, its a huge pain in the butt to use the standard M4 tool.

[SF_Chewy]

Originally Posted by redneck12

The barrel nut that comes with the Madbull Mk 18 rail works fine with the WE M4, I just highly recommend getting the DD barrel wrench or borrowing one, its a huge pain in the butt to use the standard M4 tool.

I can attest to this. I bought a Madbull DD Lite 12" rail and the nut fit fine. My M4 was purchased earlier this year

[Shrapnel[Op-For]]

few questions:

Sometimes all the gas is released from the mag on the second or third shot.. any ideas why?

I just replaced the hop up with an A+ rubber, cleaned it in hot water and dish soap. The gun shoot much better and more consistent.. however sometimes the gun shoots two bb's or one bb will just roll out of the barrel.. This is usually due to hop up issues, but I just replaced it so that can't be it.

Thanks