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I am looking for information about NPAS for my M11A1


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#1 Keith

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Posted 27 March 2013 - 09:54 PM

After reading the topic a couple of posts back I did not know what NPAS was. Now I do. RA Tech has a couple of pretty good videos on there NPAS.
   I can find NPAS for my WE guns that just swaps out the stock part but I can not find any information about putting it in my Mac.
   I can see on the parts diagram where it would go but can anyone tell me...
   Will this same NPAS fit right into my Mac without doing any modifacations?
   I have an Edgi 288mm x 6.01 tightbore and have no idea how fast it shoots.
   If I go to the Evike event in June I need to slow this thing down.
   I think.
   Any input on the subject?
Thanks,
Keith

#2 Outlaw1995

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Posted 28 March 2013 - 07:22 AM

I have to recommend getting a chrono, that way, you will be able to make adjustments and see immediate results.

I'm assuming that tight bore puts you well above 450 to even 500 fps... You've got a few options:

- swap back in your normal barrel and have the M11a1 run at about 330 fps,
- run your tight bore and install a dangerwerx valve. If the gun is running 450 fps that would bump it down to 380-400.

Take these numbers with a grain of salt since we're not sure how fast the gun shoots with the tightbore installed.

I've heard of nothing but problems for NPAS users, so I'd recommend you stay away from them. But if you want to try it out, that's your call.

What's your desired fps?

#3 Keith

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Posted 28 March 2013 - 10:20 AM

  I don't really have a set fps in mind. We don't have any limits on our local field but if do an away game I was thinking this might be a easier way to go.
  The NPAS for my M16 is only $20 so I figured I will see if it fits in my Mac when I get it.
  When you say problems with NPAS do you mean in KWA guns or just NPAS in general? The only one I have really seen is designed for WE systems like my M16.
Thank you all input is welcome.


#4 Keith

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Posted 29 March 2013 - 05:17 PM

I just heard from a tech at Evike that tells me NPAS does not work in a Mac11.

#5 Outlaw1995

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Posted 29 March 2013 - 06:09 PM

View PostKeith, on 29 March 2013 - 05:17 PM, said:

I just heard from a tech at Evike that tells me NPAS does not work in a Mac11.
Alright. The nozzle may be too short, making the NPAS stick out way too much inside the nozzle. In any case, try a dangerwerx low power "CQB" flute valve, and install it inside the nozzle. Even if it doesn't bring you down to your desirable fps, it's still a good piece of kit to have. It works in technically any KWA gun that has a "normal" or enlarged (FV system) nozzle. I say "normal" because when the MKV and 945 Compact release, I'm not sure how big this cylinder will be, and certain flute valves may not fit.




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