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Posted: 3/18/2016 2:38:40 PM EDT
[#1]
Remove both pins and pull upper receiver off. Work carrier in and out while holding upper inverted. You will probably find a loose primer in the slot once you get the BCG out.
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Posted: 3/18/2016 2:41:59 PM EDT
[#2]
Open both of your takedown pins and push/wobble your upper forward. You should be able to separate your receivers that way.
Once you get the upper off, you'll be better able to see what's going on with your bolt. I'm gonna guess you've got a popped primer stuck in there somewhere. ETA - Damn. Wings beat me to it. |
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Posted: 3/18/2016 4:24:35 PM EDT
[#3]
Thanks everyone. The unfired round was ejected so there are no primer issues. And loosening both pins allowed the upper and lower to separate some but not completely, no matter how much shaking and adjusting I tried.
Its going back to Colt under warranty. Cheers |
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Posted: 3/18/2016 5:46:58 PM EDT
[#4]
Did you install the bolt backwards in the carrier when you last cleaned it? The extractor needs to aligned with the ejection port.
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Posted: 3/18/2016 6:07:00 PM EDT
[#5]
Yeah, I'd peak in an see if the extractor is facing the ejection port. My buddy recently purchased a new Colt 6920 with a wonky bolt. The cam pin could be inserted on either side.
Albert at Colt sent him a replacement to-spec bolt. The original bolt works great as long as he's sure to insert the cam pin on the correct side. |
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Posted: 3/18/2016 7:45:07 PM EDT
[#6]
Let us know how this turns out, please.
I'm voting that it is a piece of primer preventing bolt rotation. |
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Posted: 3/18/2016 8:25:33 PM EDT
[#7]
Yes, you could see the extractor through the ejection port. And I seriously doubt there was a primer piece in there as the weapon was never fired again after it was cleaned and the round was injected intact.
Thanks again for the input and I will repost when I find out what went wrong. Cheers |
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Posted: 3/20/2016 12:19:16 AM EDT
[#8]
Did you forget to put the firing pin back in?
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Posted: 3/20/2016 2:18:12 AM EDT
[#9]
What happens if you retract the bolt all the way?
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Posted: 3/20/2016 10:28:05 AM EDT
[#10]
Quote HistoryQuoted:
What happens if you retract the bolt all the way? I think OP sent it back to Colt and we're on intermission until it comes back. |
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Posted: 3/21/2016 10:24:40 AM EDT
[#11]
I couldnt pull the bolt back all the way.
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Posted: 3/21/2016 10:25:20 AM EDT
[#12]
And the firing pin was installed.
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Posted: 3/21/2016 8:41:41 PM EDT
[#13]
Maybe a loose buffer retainer?
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Posted: 4/13/2016 6:40:41 PM EDT
[#14]
Well, the rifle came back from Colt. The only comments about the fix were that they installed a new firing pin. It cycles and dry fires fine but I will take it to the range to see how it works.
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Posted: 4/13/2016 8:03:29 PM EDT
[#15]
Seems like pretty timely service. Here's hoping that your troubles are past.
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Posted: 4/14/2016 3:17:14 AM EDT
[#16]
Firing pin retaining pin. Either missing, broken, or the firing pin was not in deep enough when the retaining pin was installed.
I’ve seen this once before. A coworker brought me his AR, because he couldn’t get the bolt to go fully forward or rearward. Once I finally got it apart, the firing pin was just floating around in the receiver wherever it wanted to go. In his case, “someone” (not pointing fingers, but he had a pretty sheepish look when I asked him for money for the new firing pin) had installed the firing pin retaining pin without ensuring that the firing pin was far enough into the bolt, first. That firing pin was chewed up pretty bad and needed to be replaced, too. |
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Posted: 4/14/2016 8:06:10 PM EDT
[#17]
No gun is fool-proof.
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Posted: 4/19/2016 11:55:57 AM EDT
[#18]
Out of curiosity, how did you get it apart? I couldn't figure out a way to do it which is why I sent it back to Colt.
Cheers Kevin |
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Posted: 4/19/2016 12:33:16 PM EDT
[#19]
Quote HistoryQuoted:
Out of curiosity, how did you get it apart? I couldn't figure out a way to do it which is why I sent it back to Colt. Cheers Kevin Worst case scenario, you remove the barrel to give enough room to slide the BCG forward. |
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Posted: 4/20/2016 10:22:52 AM EDT
[#20]
Thanks. I am fairly new to AR's.
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