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KA M4: Can't open dust cover

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Old April 7th, 2011, 23:17   #1
MultipleParadox
 
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Join Date: Feb 2011
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KA M4: Can't open dust cover

Hi all
Received my M4, model KA-AG-35 (Larue 7") not so long ago.
Working fine and all, but out of a sudden it seems i can't open the dust cover anymore.

Pulling the charging handle, I can hear the ornamental bolt retract itself and snap in place, and pushing the bolt release works fine, but the cover will stay closed.

I tried sticking a rare earth magnet on it and use it as a "knob" to pull it open but it definitely won't move...

Any suggestions?
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Old April 7th, 2011, 23:19   #2
Spike
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Can you pull the charging handle farther back than usual? This happened with my KA receiver, I ended up snapping the charging handle arm. Take your upper receiver off and you should be able to see what's wrong.
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Old April 8th, 2011, 09:26   #3
MultipleParadox
 
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I'll take a look thanks
I don't think I was able to pull it farther than usual but I'll pay attention.

Also, it's my 1st AEG, any indications about how to open the receiver?
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Originally Posted by Brian McIlmoyle View Post
Real life comparison,

GBBR- bang bang -- Giggle

AEG-- merrrzip merrzip -- meh
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Old April 8th, 2011, 13:29   #4
MultipleParadox
 
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Alright guys problem solved
Opened the receiver and turns out the fake bolt is just a somewhat cheap, thin, metal sheet that was not properly seated in its "rail".

The charging handle has a small piece that rub against the dust cover lockpin to open it, and because of the fake bolt misalignement there was not enough pressure to make it open.

I had to use pliers to bend a thing or two to make things a bit more tense.

Also took the opportunity to shorten the way too long charging handle spring.

Thanks
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Quote:
Originally Posted by Brian McIlmoyle View Post
Real life comparison,

GBBR- bang bang -- Giggle

AEG-- merrrzip merrzip -- meh
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