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Thread: Mark on 6920 barrel???

  1. #1
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    Mark on 6920 barrel???

    Can someone tell me what this mark is from on my barrel. I just got this one in and it was still in the factory box. Looks like paint........ Any suggestions on how to get it off????

    Thanks in advance.

  2. #2
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    1) You'll probably get more exposure and responses posting in the general forum - this is the NFA forum.

    2) Hard to say from a pic. Does it scratch off with a fingernail or rub of with gun oil or a solvent?

    Could be anything from extra anti-seize lube used on the barrel nut to mayo from the assemblers BLT. Rub/scrape/blow-torch it off. It's a steel barrel designed to contain an explosion and rocket a copper coated projectile at almost 3000fps. It'll stand up to it.

  3. #3
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    Quote Originally Posted by bwhited View Post
    Can someone tell me what this mark is from on my barrel. I just got this one in and it was still in the factory box. Looks like paint........ Any suggestions on how to get it off????

    Thanks in advance.
    hit it with non fluorinated brake cleaner and then spray the area with CLP after you've removed the paint. It is probably nothing of consequence.

  4. #4
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    Re:

    It does not scratch off and none of my oils or solvents have any effect.

    And I just posted it here because it seems the NFA peps are a bit more knowledgeable with the Colts.... Just my opinion.

    Thanks

  5. #5
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    Did you try non-fluorinated brake cleaner?

  6. #6
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    Go heat up the barrel with a couple mags, it should burn off from the heat.. Since it does look like paint from the pic.
    Last edited by Rock-N-Ruin; 07-21-09 at 16:19.

  7. #7
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    Quote Originally Posted by Rock-N-Ruin View Post
    Go heat up the barrel with a couple mags, it should burn off from the heat..
    Even better! I second this. Shoot the shit out of it.

  8. #8
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    Shooting it will probably annihilate the offending mark.

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    Re

    Good idea. Will give it a try.

    Thanks everyone.

  10. #10
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    I have a similar thing on my bolt, see picture. This is on my mt6400c that I just got. Looks a bit shinny and feels smooth. Anybody know what it is? I just scraped a little bit off. So it will come off but not easily.

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