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Thread: Lubricating the buffer spring

  1. #41
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    Quote Originally Posted by markm View Post
    Agreed. If you're lubing your action spring... read my SIG LINE!!!
    Haha. I think for years people were criticizing the AR for needing to be clean and soaked in lube, and a lot of folks still think its the case. I've gotten to where I mainly lightly lube my bcg and that's pretty much it anymore. So far I've not had any problems. I'm also running a NiB BCG so I'm not sure if that helps or not.

  2. #42
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    I was on a course in which a friend of mine was shooting a borrowed, new KAC SR-15 that did not run reliably until the buffer and spring were lubed, IIRC.

    I recall that he was fairly frustrated by the issue because lubing the spring and buffer was certainly not the first thing he thought of, or attempted. I think it was eventually suggested by the instructor after all the obvious stuff was tried.
    Full disclosure: I'm the editor of Calibre Magazine, which is Canada's gun magazine. In the past I've done consulting work for different manufacturers and OEM suppliers, but not currently. M4C's disclosure policy doesn't seem to cover me but we do have advertisers, although I don't handle that side of things and in general I do not know who is paying us at any given time.

  3. #43
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    I fail to see how lubricating the buffer spring would have made the weapon more reliable. I never leave the Springer buffer on any of my weapons and they seem to be working 100 percent just fine. Maybe I'm missing something or do something wrong.

    Quote Originally Posted by misanthropist View Post
    I was on a course in which a friend of mine was shooting a borrowed, new KAC SR-15 that did not run reliably until the buffer and spring were lubed, IIRC.

    I recall that he was fairly frustrated by the issue because lubing the spring and buffer was certainly not the first thing he thought of, or attempted. I think it was eventually suggested by the instructor after all the obvious stuff was tried.



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  4. #44
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    ALL springs require some lubrication to operate as designed.

    it's just a matter of discretion in application of the lubrication of choice for that particular application...

    for example: the valves in an auto/motorcycle engine require lubrication only where they contact their keepers.

    "Springer" airguns can gain quite a bit of power simply by a proper lube job on the mainspring. the mainspring normally has a lot of contact with the receiver tube causing friction that interferes with the travel of the mainspring. the air gun industry has developed special lubes for air gun springs for that reason.

    if you choose to lubricate i would do so, sparingly, with a lube that's specifically for springs.
    it is better to remain silent and be thought as being a fool, than to open your mouth and remove all doubt...

  5. #45
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    Friction is not a good thing in any mechanical device. I lube the spring very lightly with a cloth that is damp with gun oil.

  6. #46
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    Question

    Quote Originally Posted by theblackknight View Post
    The best part of the paul howe rifle vid is the cleaning section. He paints everything with a brush full of tw25b. " i like to lube the buffer spring bc I dont like that springy sound".

    sent from mah gun,using my sights
    To be honest, I've never heard the spring sound on any of my 5 ARs when fired, not even my A2 Sporter... with over 10K rounds on every one of them. I change out springs and things at the 5K interval. On active duty back in the day, yes on A1s and A2s, it was a pretty standard sound.

    Curious, if your (anyone's) weapon makes the spring sound when fired, does the action spring need to be replaced?
    For God and the soldier we adore, In time of danger, not before! The danger passed, and all things righted, God is forgotten and the soldier slighted." - Rudyard Kipling

  7. #47
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    Mine makes the sound and I think it's natural. I've had some that haven't made the sound also. J&T distributing sells a rubber piece that's designed to stop it but doesn't work good. It's called the twang buster.

  8. #48
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    Quote Originally Posted by RogerinTPA View Post
    To be honest, I've never heard the spring sound on any of my 5 ARs when fired, not even my A2 Sporter... with over 10K rounds on every one of them. I change out springs and things at the 5K interval. On active duty back in the day, yes on A1s and A2s, it was a pretty standard sound.

    Curious, if your (anyone's) weapon makes the spring sound when fired, does the action spring need to be replaced?
    FWIW, my S&W lower is quiet, my LRB lower is noisy. No real difference in care.

  9. #49
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    I have no field experience or real technical know-how from a professional perspective about lubing or not lubing the receiver extension, the spring, and buffer. However I did apply some Froglube onto the spring and buffer using a cloth and I did noticed that the twang sound has been significantly reduced along with the action of my DD M4V5 being far smoother than anything else.

    To compare results, two of my friends run the exact same rifle and they've only Froglubed their upper receivers and bolts. When you rack their rifles there is more of a tooth/friction versus my rifle which feels far smoother, with almost no friction.

    So far I haven't seen much crud build up in the receiver extension.

  10. #50
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    I have observed that, when the spring and buffer assembly has a moderate amount of lubrication, the action is quieter, smoother, and less "draggy" when cycling by hand. I can't say for sure that there's no difference in spring noise when fired, but I haven't noticed one, nor was I expecting that.

    I view this sort of thing as preventive maintenance, but it clearly isn't absolutely required. Lack of additional lubrication of the buffer/spring isn't likely to ever prevent the action from functioning on it's own, but I definitely consider lubing these moving parts as a good measure towards maintaining the overall system. I don't live or operate in a sandy or dusty environment, and I have never noticed any significant build-up in the RE, so cleaning considerations aren't much of a factor for me.

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