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KWA ATP Problem


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#1 Hoss

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Posted 05 January 2014 - 07:01 AM

Okay, I recently recevied this gun from a friend and it is a GEN 1. Here is the problem I am having...

I will fill the mag up with gas and bb's.

I place the mag into the gun and rack the slide.

I pull the trigger, one bb fires and the slide goes back and slides forward again.

Then all the gas releases from the mag...

Anyone know why the gas is releasing?

Edited by Hoss, 05 January 2014 - 08:35 AM.


#2 Hibiki

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Posted 06 February 2014 - 03:42 PM

Is the magazine properly filled? If you only have a very small amount of gas in the magazine, that will happen. I hear that the baseplate on the ATP magazines won't always allow propane adaptors to fully fill the magazine. If that's the case, you might just not be getting enough gas into it.

#3 Chicken

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Posted 07 April 2014 - 02:13 PM

I have had a similar problem with one of my magazines.  You may need a new mag.

#4 Bootskoot589

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Posted 29 April 2014 - 11:07 AM

View PostHibiki, on 06 February 2014 - 03:42 PM, said:

Is the magazine properly filled? If you only have a very small amount of gas in the magazine, that will happen. I hear that the baseplate on the ATP magazines won't always allow propane adaptors to fully fill the magazine. If that's the case, you might just not be getting enough gas into it.

I don't know about Gen.1 if the mags are the same as the Gen.2 but if the magazine has a rubber piece on the bottom and your using propane you need to pull the rubber piece forward and then fill, this is a common issue where people are not able to fill correctly or even break propane adapters. If you use propane and you believe you may not be filling it correctly try that :) look up videos on YouTube regarding the KWA ATP and hopefully someone else will point that out in a video

#5 Acorn Avenger

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Posted 29 April 2014 - 12:33 PM

It's most likely a broken seal

#6 gcw360

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Posted 01 May 2014 - 06:21 AM

If the mag is not adequately filled this will happen.  It will also happen if the part releasing the valve is not properly functioning or if the cylinder seal is broken.  If it's not the mags, I recommend the gun be sent in for repair.

You can try cleaning the gun and adding a drop or two of silicon in the hammer assembly.  Work the hammer back and forth about 30 times and try the gun.  If this works the gun was dirty and needed proper lubing.

#7 SR105

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Posted 01 May 2014 - 09:54 AM

This may also be caused by improper engagement of the trigger bar with the hammer sear. This is typically remedied by adjusting the angle of the trigger bar body. Unfortunately this is not easy to explain and even in person, it takes many tries to get it in the correct position. The best thing to do would be to send it in if all other suggestions don't work.

#8 gcw360

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Posted 01 May 2014 - 10:57 AM

View PostSR105, on 01 May 2014 - 09:54 AM, said:

This may also be caused by improper engagement of the trigger bar with the hammer sear. This is typically remedied by adjusting the angle of the trigger bar body. Unfortunately this is not easy to explain and even in person, it takes many tries to get it in the correct position. The best thing to do would be to send it in if all other suggestions don't work.
Thanks SR105, I'm always pleased when you are on the Forums!




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