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Thread: Colt 6920, doesn't quite look right?

  1. #1
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    Colt 6920, doesn't quite look right?

    A very good friend of mine recently took the AR plunge. He purchased a Colt LE6920, from an online dealer. He received the rifle yesterday, and though that it looked like there were burrs on the inside. He sent me these pictures, based on my limited knowledge It doesn't look right to me either. Any help from you veteran's would be appreciated.

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    unnamed (1).jpg
    98% Sarcastic. 100% Overthinking things and making up reasons for buying a new firearm.

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    Looks like it could be carbon build up. But not sure. Does it wipe away? Was the rifle new or used?
    "I don't collect guns anymore, I stockpile weapons for ****ing war." Chuck P.

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    He bought it new. And he just confirmed it does not wipe away.
    Last edited by WickedWillis; 03-05-15 at 19:00.
    98% Sarcastic. 100% Overthinking things and making up reasons for buying a new firearm.

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    I would get in touch with Colt then since it looks like a defect of some sort.
    "I don't collect guns anymore, I stockpile weapons for ****ing war." Chuck P.

    "Some days you eat the bacon, and other days the bacon eats you." SeriousStudent

    "Don't complain when after killing scores of women and children in a mall, a group of well armed men who train to shoot people like you in the face show up to say hello." WillBrink

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    I could be wrong, but I thought I read that Colt has been using that grey Teflon coating on the interior of their uppers for a while now...Kind of like LMT.

    If that's the case, then it looks to me like that Teflon finish was unevenly applied, but I wouldn't be very concerned as that finish wears off rather quickly anyway, exposing the black anodizing underneath...which is what you might be seeing here.
    Last edited by MikeCLeonard; 03-05-15 at 19:06.

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    It's called dry film lubricant.



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    Quote Originally Posted by MikeCLeonard View Post
    I could be wrong, but I thought I read that Colt has been using that grey Teflon coating on the interior of their uppers for a while now...Kind of like LMT.

    If that's the case, then it looks to me like that Teflon finish was unevenly applied, but I wouldn't be very concerned as that finish wears off rather quickly anyway, exposing the black anodizing underneath...which is what you might be seeing here.
    Great info as well. His FFL told him that it was a 2013 model that they shipped.
    98% Sarcastic. 100% Overthinking things and making up reasons for buying a new firearm.

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    2013 model or 2013 config (magpul buis and pmag) ?

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    Im not sure what you are referencing. Burrs? If you are talking about the grey substance that is coating the interior of the upper, its definitely dry film lube and its definitely supposed to be in there (per milspec). Is there something else that you've noticed?
    Last edited by joeyjoe; 03-06-15 at 10:02.

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    Quote Originally Posted by MikeCLeonard View Post
    I could be wrong, but I thought I read that Colt has been using that grey Teflon coating on the interior of their uppers for a while now...Kind of like LMT.

    If that's the case, then it looks to me like that Teflon finish was unevenly applied, but I wouldn't be very concerned as that finish wears off rather quickly anyway, exposing the black anodizing underneath...which is what you might be seeing here.

    This coating had been on the inside of these receivers since 1959
    "Not every thing on Earth requires an aftermarket upgrade." demigod/markm

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