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Kriss Vector bolt getting stuck

Kriss Vector bolt catch

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#1 dtzchar

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Posted 22 April 2013 - 06:16 PM

Hey fellow airsofters,
I'm having a problem with my Kriss Vector and the bold getting stuck for some reason. I hope its a simple fix like grinding something down a bit. The video will explain it a little better. Any help or suggestions would be greatly appreciated.  



#2 gcw360

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Posted 22 April 2013 - 06:34 PM

View Postdtzchar, on 22 April 2013 - 06:16 PM, said:

Hey fellow airsofters,
I'm having a problem with my Kriss Vector and the bold getting stuck for some reason. I hope its a simple fix like grinding something down a bit. The video will explain it a little better. Any help or suggestions would be greatly appreciated.  


I would pull the bolt, thoroughly clean the bolt and guide rails, and re-lubricate with 20-30wt R/C shock oil.  See if this helps the issue.

#3 TicTac

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Posted 22 April 2013 - 06:36 PM

ya re-lube it

#4 gcw360

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Posted 22 April 2013 - 06:39 PM

The lube that the KRISS came with is thick stuff and the factory put on a lot.  It's probably attracting dirt and grime.

#5 TicTac

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Posted 22 April 2013 - 06:41 PM

or it could be the bolt getting caught on the upper receiver try shaving down the part that is rubbing on the upper if a relube doesn't work

#6 dtzchar

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Posted 22 April 2013 - 06:45 PM

View Postgcw360, on 22 April 2013 - 06:34 PM, said:

I would pull the bolt, thoroughly clean the bolt and guide rails, and re-lubricate with 20-30wt R/C shock oil.  See if this helps the issue.

I've cleaned this gun till it is cleaner than when I bought it and lubed it with madbull silicon oil and that didn't solve the problem.

#7 Specter

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Posted 22 April 2013 - 08:51 PM

mine does this to. I find it only does it if you handle the bolt real lightly. If you pull the bolt, and just let it go, it shouldn't do this any more. Freaked out a little when mine first did it to.

#8 gcw360

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Posted 23 April 2013 - 02:48 PM

View PostSpecter, on 22 April 2013 - 08:51 PM, said:

mine does this to. I find it only does it if you handle the bolt real lightly. If you pull the bolt, and just let it go, it shouldn't do this any more. Freaked out a little when mine first did it to.
I was just messing with mine.  If I released the bolt very slowly, it seemed as if it wanted to stop.  That said, when I use the gun as intended I have no issues at all.  Granted I have only put about 1000 rounds through it.  I'm going to watch your video again.

Just watched again.  If you pull the charging handle back and allow it to release without holding it back does the bolt ever stay in the retracted position?  I'm guessing not.  As Spector observed, release the charging handle as intended and you shouldn't have an issue.  If you do, I would then send it in for repair.

#9 muffinman1604

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Posted 23 April 2013 - 04:11 PM

My friend has a somewhat similar issue, check your entire bolt catch and everything involved in that. That is where his problem was.

#10 BoobieM4H

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Posted 23 April 2013 - 11:26 PM

That's..um..normal..you don't have any issue with the bolt..just let that bolt go!

( o Y o )



#11 niko_gpsy

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Posted 25 April 2013 - 02:48 PM

With new GBB guns you really have to break in the moving parts like the bolt and etc over some time before it operates smoothly as intended.  Or be like me and just FROG LUBE the SOB.  Problems solved.
You may just want to pull and release the charging handle many, many times until the bolt releases smoothly.  Or just keep using it until the parts wear down or break in a bit as long as the bolt doesn't stick when you fire it.

#12 TicTac

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Posted 25 April 2013 - 05:50 PM

amen GBBs are really tight from the factory

#13 Specter

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Posted 25 April 2013 - 10:06 PM

bowchickawowow

#14 gcw360

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Posted 26 April 2013 - 07:27 PM

View PostSpecter, on 25 April 2013 - 10:06 PM, said:

bowchickawowow
Brownchickenbrowncow.......(music played during farm animal porn movie...) But I digress, as has been said, release the bolt as intended and there should be no problems.

#15 xKingSizex

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Posted 27 April 2013 - 02:13 PM

The latest batch from the factory had tighter tolerances on the bolt to the rails. We did do a little modification on a few of the bolts in order to make them not fit as tight. Break in, proper lubrication and proper handling should do the trick.

#16 gcw360

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Posted 27 April 2013 - 04:11 PM

Tighter tolerances should payoff in the long run I'm thinking.

#17 BENboBEN

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Posted 27 April 2013 - 05:14 PM

View Postgcw360, on 27 April 2013 - 04:11 PM, said:

Tighter tolerances should payoff in the long run I'm thinking.
I don't know, the M Series is very loose and wobbly all over. It's the most reliable system I've ever seen.




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