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Service Advisory - Aftermarket flash hider can CRUSH Hop-up units.


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#1 Guest_allizard_*

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Posted 18 February 2010 - 11:22 AM

We have been receiving RMA's with broken hop-up units.

Posted Image

After our inspection the common cause is related to installing after market flash hider that have smaller inner diameter and cause the barrel to push backward. See video below.



#2 Gorilla

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Posted 18 February 2010 - 01:21 PM

Thanks for the video demo and specs (8.5mm barrel O.D.)

To that end I checked the fitted FH on my SR5 and it is fine (barrel protrudes slightly into FH, so obviously clears opening), and the planned FH on my SR10 measures at about 9mm opening, plenty for the inner barrel.

The FHs I have are the King Arms PRI MSTN QCB Flash Hider (say that 3 times fast!), and the G&P "Voltex" Flash Hider.

Perhaps this is a good place to list all compatable, tested FHs? If not, admins, feel free to move this to the 3rd party compatability thread.

G.

One more to add: G&P '05 Knights Type FH - 9mm+ clearance.

Edited by Gorilla, 18 February 2010 - 03:29 PM.


#3 Guest_allizard_*

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Posted 18 February 2010 - 02:21 PM

Good idea...

List your compatible FH here below.

#4 morati

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Posted 18 February 2010 - 02:30 PM

The inner barrel on my SR10 does not protrude at all past the outer so I guess I am safe to mount any FH?

#5 Guest_allizard_*

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Posted 18 February 2010 - 04:25 PM

That depends if it will affect how the BB exit the barrel.

#6 Chachi_RC

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Posted 02 March 2010 - 02:02 PM

Are there any other flash hiders that are being used that fit without issue? Links would be a great help too! Thanks!

#7 youngturk

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Posted 02 March 2010 - 03:11 PM

I use my JG'S M4 flashhider.

Its the same as KWA's...both birdcage one is black,kwa orange:P(Clean add-on,you can see the inner barrel going out a bit so you are safe)

#8 SVT Cobra

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Posted 12 March 2010 - 08:22 PM

I am running a MadBull G5 FH CCW on my SR 12. Clearance is perfect and after about 5-6 full KWA Hi-Cap Mags, there are no issues to report. Accuracy has not changed on semi/full from when I switched from the Stock KWA Birdcage to this G5. Good looking piece might I add!

http://www.airsoftgi...roducts_id=3354

#9 Ryno

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Posted 13 March 2010 - 05:26 PM

The Noveske KX3 sound amplifier works fine. Sounds cool too.

Edited by busterlonghorn, 13 March 2010 - 05:27 PM.


#10 xKingSizex

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Posted 16 March 2010 - 05:23 PM

View Postbusterlonghorn, on 13 March 2010 - 05:26 PM, said:

The Noveske KX3 sound amplifier works fine. Sounds cool too.

That's what I have on my SR5 as well, and an EDGI 6.01 cqb barrel. It added 10mm so the KX3 was necessary to cover the barrel.  Works like a dream!

#11 CommieHunter

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Posted 04 November 2010 - 10:22 AM

I'm one of the guys that originally broke the hop-units.  Super mad props to KWA for (A figuring out what it was, and (B providing awesome customer support to fix the AEGs.

The NON-COMPATIBLE flashhider was the element vortex.  If you look inside, it's got a super narrow opening and didn't let the inner barrel through.

Most other ones we've checked work fine.

#12 royalina

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Posted 23 January 2011 - 09:33 PM

The FHs I have are the King Arms PRI MSTN QCB Flash Hider (say that 3 times fast!), and the G&P "Voltex" Flash Hider.,.......











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#13 Sevendust

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Posted 31 January 2011 - 09:35 PM

http://www.airsoftpo...oducts_id=29104

Is this the vortex flash hider that was involved?

#14 proverbialguy739

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Posted 11 February 2011 - 10:14 PM

my socom gear KFH flash hider (the one that amplifies sound) works perfectly on my sr7.

#15 Sod White

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Posted 28 December 2012 - 07:30 PM

Please forgive the necroposting but this is the most relevant, existing thread for a question I have regarding my MP7 by KWA. Is this problem being experienced with the addition of the Angry Gun suppressor with tightbore inner barrel extension? It is spring-loaded, and doesn't apply great force to the end of the MP7's inner barrel but I wonder if it will become an issue over time.

#16 gcw360

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Posted 28 December 2012 - 07:39 PM

have a look at this thread: http://kwausa.com/fo... +inner +barrel

It doesn't look like it works well.  Admittedly I only skimmed the thread.

#17 rozer121

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Posted 05 February 2013 - 02:04 PM

To that finish I checked the fitted FH on my SR5 and it's fine (barrel protrudes slightly into FH, therefore clearlyclears opening), and therefore the planned FH on my SR10 measures at concerning 9mm gap, lots for the inner barrel.

The FHs I actually have ar the King Arms PRI MSTN QCB Flash Hider (say that three times fast!), and therefore the G&P "Voltex" Flash Hider.

Perhaps this can be a decent place to list all compatable, tested FHs? If not, admins, be at liberty to maneuver this to the third party compatability thread.

==========================================

#18 -wigs-

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Posted 17 February 2013 - 03:36 PM

I'll post my findings that this also recently happened on my lm4 by cranking on a fh that wasn't bored out enough to let my inner slightly protrude. So check to see that an inner  will fit before screwing it fully on




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