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Thread: CARBON ON BOLT TAIL

  1. #31
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    I'm glad to hear that cleaning off the carbon in this area is unneeded. It's a big hassle as none of my gun solvents seem to be taking it off that well.

  2. #32
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    Quote Originally Posted by Blankwaffe View Post
    If you do this during and especially after shooting the CLP will actually start to break the crusty stuff down.If allowed to sit for a few days it really breaks the stuff loose.
    I drop CLP in the exhaust holes and in the carrier key at the end of every range session. It works... but as you said, it takes time to soak.
    "You people have too much time on your hands." - scottryan

  3. #33
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    ha...

    All I use for that area is a sharpened chop stick I saved from the china buffet.I eat there about once a week and have collected a good assortment.Free tool and it works perfectly to keep the chunks under control.
    ...I thought I was alone with the wood thing...
    I also use the little cuticle stick that comes with the nail clippers and stuff...It's 1911 sized and shaped to scrape, and poke pins...

  4. #34
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    Cleaning carbon in this area is mostly a waste of time. Many people do more damage to their bolt than good by their various methods of cleaning, scraping, etc. As far as the buddy that told someone that wasn't there that the weapon "locked-up" due to carbon - that's called a clue.

  5. #35
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    There is a strict volume requirement in this area as the gas needs to expand into it for force the carrier to move. If buildup on the bolt tail and inside the carrier bore reduce the volume to below .071 cubic inches, there just is not enough pressure to do the job and..... (sound of BS meters all over the net, humming and then pegging the needle, some shattering their glass)....


    I agree 99.5% it's not critical to clean these areas even though I make some tools for doing it. I will say that if one is going to clean them it's critical to do it right, in terms of the bolt tail anyway, the danger being inadvertently damaging or even removing a gas ring or just poking or cutting oneself. That's why I made the bolt tail scraper in such a way that it can't slip off as you apply pressure. Some of my very first ones did not have cutting relief on them and did not work very well. They now all have it CNC'd in and a couple twists make the chunks fly. Again not critical to do but I'm a little strange in that I actually enjoy cleaning guns (still to this day!) and there's just something satisfying about banishing carbon and crud from one of my implements if recreation.

    If using a wire brush for bolt tail cleaning just be sure when you go to reassemble that you still have three gas rings.

  6. #36
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    Quote Originally Posted by MX5 View Post
    I agree with gotm4. Cleaning the carbon in this area is a waste of time. Many people do more damage to their bolt than good by their various methods of cleaning, scraping, brushing on a grinding wheel, etc. Leave it alone.
    I don't know! I've been scraping and brushing with steel wire brushes for over 10 years and haven't even damaged the finish on the bolt tail... let alone the bolt itself.

    I guess I'll have to try a grinding wheel! I do agree that the rifle will function with it left on there. I've seen ARs that'll function so dirty that the barrel extension is full of crud. ARs will run very dirty, but I still like mine very clean.
    "You people have too much time on your hands." - scottryan

  7. #37
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    Quote Originally Posted by Ned Christiansen View Post
    and there's just something satisfying about banishing carbon and crud from one of my implements if recreation.


    That, and I feel like a lazy bum if I don't remove it.
    "You people have too much time on your hands." - scottryan

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