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Thread: Discussion on BCG finishes

  1. #41
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    Have you carried and used a weapon in the Arabian desert? I have.

    Run dry, with teflon lube, the gas system blows the receiver reasonably clean with each shot. Run wet, it gunks up fast.

    Oil is necessary, but I'm not aware of any other gun with a fan club that preaches pouring engine oil in. Mayhap that theory is wrong?

    And if there's a way to not need to pour in a crate of oil, perhaps that is more useful?

    Is this the same Army that doesn't actually teach cleaning and maintenance, barely teaches sighting in, issued my wife a "cleaning kit" consisting of only a tooth brush, and prohibits cleaning with solvents because HAZMAT procedures are too hard to follow? Why, yes, it is.

    It's also the same Army that insists that ACU is actually camouflage.

  2. #42
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    And as far as being "phased out," chrome BCGs were in use in my experience as late as 1990.

    What you read online, or in some report, doesn't necessarily parse with the real world.

  3. #43
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    Quote Originally Posted by MichaelZWilliamson View Post
    And as far as being "phased out," chrome BCGs were in use in my experience as late as 1990.

    What you read online, or in some report, doesn't necessarily parse with the real world.
    Holy shit. No shit they were still in inventory, Colt phased out chrome BCGs by 1964. What's missing from Ekie's picture is a transitional parkerized carrier with chrome key and bolt. Until the change over was complete, any mixture of chrome and parkerized parts could have been had. But by the time chrome chambers were introduced by Colt's in 1968, none came from the factory with chrome BCGs.

    I have shown you an article with hard scientific data to prove you're wrong about lubrication. Also, you think some rifles don't need lubrication to run. You're wrong.

    You know what, though. You have fun believing whatever you want. You think you know everything, I have explained why you are wrong and you still think otherwise. Have fun arguing with yourself, I'm done.

  4. #44
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    Try training the oil out of your car and driving in through the Arabian Desert. Feel free to chrome plate the internals or use teflon dry lube if you feel it will help.

    Be sure to post pictures afterwards

  5. #45
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    Do either of you have any experience, or data, on advanced coatings for BCGs?

    Please stay on topic or go to arfcom.

    PS: I have 6 AKs here that have never been lubed.

  6. #46
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    Quote Originally Posted by .45fmjoe View Post
    I have shown you an article with hard scientific data to prove you're wrong about lubrication. Also, you think some rifles don't need lubrication to run. You're wrong.
    I'm going to assume from your tone that you have not actually carried and used an AR platform in the Arabian desert, have not had the opportunity to test chrome and park side by side on active duty, and spend a lot of time reading when you should be shooting.

  7. #47
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    While I can understand plating the bolt, I can't understand plating the carrier. The carrier rides on four thin rails and the bolt pocket is already chrome lined. Spot application of plating to the rails would be difficult and cost prohibitive.

    Contrary to a previous post in the thread, manganese phosphate is an excellent coating. It has excellent corrosion resistance and provides superior lubrication for metal to metal contact. It is a sacrificial finish and has excellent break-in properties and reduces wear on moving surfaces. It's highly absorptive coating retains oils, rust preventives and lubricants.

    The nickel based coatings hold very little lubricant as their surface matrix is not course enough and lubricant easily flung off of coated parts.

  8. #48
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    Quote Originally Posted by MK18Pilot View Post
    While I can understand plating the bolt, I can't understand plating the carrier. The carrier rides on four thin rails and the bolt pocket is already chrome lined. Spot application of plating to the rails would be difficult and cost prohibitive.

    Contrary to a previous post in the thread, manganese phosphate is an excellent coating. It has excellent corrosion resistance and provides superior lubrication for metal to metal contact. It is a sacrificial finish and has excellent break-in properties and reduces wear on moving surfaces. It's highly absorptive coating retains oils, rust preventives and lubricants.

    The nickel based coatings hold very little lubricant as their surface matrix is not course enough and lubricant easily flung off of coated parts.
    Are the lugs and raceway chromed on most guns? Some of my issue weapons were, and it worked well, but I don't recall any recent ones being that way. I may be wrong. Please do let me know on this.

    Parkerizing isn't a bad coating, and holds lube well, but it is a coarser surface, and that same texture also holds crud, once the oil dissipates from friction.

    The nickel and chrome don't hold lube as well, true, but they have a higher natural lubricity. This reduces (not eliminates, despite straw man arguments upthread) the need for lube, and reduces adhesion by what I will again technically call "Crud."

    Since I have several similar guns, once the temperature warms up I'll go do a side by side test of park and chrome and post results.

  9. #49
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    My $.02

    I am new to these things but I went with a FailZero BCG. I am in LE and it was worth the extra cash for just a little more piece of mind it will go bang when I need it to.

    Couple of things:
    All current FZ kits have FA carriers. I ordered a semi kit from brownells expecting a semi carrier and hammer. It came with a FA carrier. I contacted FZ for clarification and they verified all current kits going out are FA carriers due to customer demand.

    Spike isn't really any cheaper. FZ charges $250 and Spikes charges $225. But Spikes doesn't include a hammer. Then you need to spend $22 for a FZ hammer or $60 for Spikes battle trigger kit.

  10. #50
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    FZ costs more than $250 now, and I have the right hammer already. I'm not opposed to a treated hammer, but I don't see a real advantage except for the inside of the pivot being treated.

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