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Thread: Lubricating the buffer spring

  1. #51
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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.
    Same here. After 29 years in this gun club I've shot A1's and A2's as well as the M4 I carried during my last trip to the great sand pit. The A1 and A2 without a doubt had that 'spring" sound when fired but I never noticed it with the M4. As for my personal M4 I just ran some frog lube paste over the buffer spring threw it in the over for like 10 minutes installed it and haven't touched it since. My middy runs great with that Springco blue and a H2 buffer for over 1500 rounds now.
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  2. #52
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    Quote Originally Posted by Iraqgunz View Post
    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.
    I could not tell you; I am only relating the fact that the weapon had issues until the spring and buffer were lubed, at which point it began to operate correctly.

    I am not the owner of the gun, nor would I have thought of that as a possible source of issues. I was purely a spectator to the incident, but the gun definitely did not run to begin with. A number of fixes were attempted without success. It's possible that the gun was breaking in and the problems went away coincidentally after the spring and buffer were lubed, as I believe the weapon to have been brand new and almost never fired.

    I would guess, based on the number of rounds I fired at that course, that the lube was applied somewhere around the 400 round mark. Prior to that the gun ran very poorly and the shooter was quite annoyed.

    So whether one should have to lube their spring and buffer is not something I could tell you; obviously if your guns run well without lube there it's not always necessary. Maybe this particular gun was marginal to begin with, and a normal amount of buffer friction was still enough to disrupt cycling. Or maybe the .223 ammo I believe the owner to have been using was a little weak, and the gun broke in over 500 rounds and the lube was a coincidence. But there was clearly a point where the gun went from "runs terribly" to "runs fine" and it was right after the spring and buffer were lubed, unless I am remembering things incorrectly.

    I have a message out to the guy who was actually shooting it so hopefully I will be able to get more details later today.
    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. #53
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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?
    Strange how different people get different results. A5 System with brand spanking new (less than 300 rds) green springco spring and I get the sound. No big deal though.

    -Jax


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  4. #54
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    I wonder how much "the sound" depends on what stock you're running? Using an LMT Crane stock or a Magpul STR, my A5 extensions make no noise like that. Maybe it's accentuated by a thinner stock in the cheek area?

  5. #55
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    Quote Originally Posted by jaxman7 View Post
    Strange how different people get different results. A5 System with brand spanking new (less than 300 rds) green springco spring and I get the sound. No big deal though.

    -Jax
    Agreed. I don't see it as function issue as it is an annoyance. Just curious as what is actually happening to cause that sound/vibration in certain weapons and not in others. Perhaps the buffer and or action spring has gone bad/worn and is momentarily hanging up, binding or ratcheting inside the RE.
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  6. #56
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    You just reaffirmed my 'different results' post Buford T. I use a Crane on the A5.

    -Jax


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    Quote Originally Posted by Army Chief View Post
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  7. #57
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    Quote Originally Posted by RogerinTPA View Post
    Agreed. I don't see it as function issue as it is an annoyance. Just curious as what is actually happening to cause that sound/vibration in certain weapons and not in others. Perhaps the buffer and or action spring has gone bad/worn and is momentarily hanging up, binding or ratcheting inside the RE.
    Or imperfection inside the RE causing the spring and or buffer to slightly deviate from its intended path. I've never really noticed it except on this particular A5.

    -Jax


    "Despite what your mamma told you, violence does solve problems."
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    Quote Originally Posted by Army Chief View Post
    "Elite" designations come from the things that you DO in life, and not from the things that you buy along the way. AC

  8. #58
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    i've found that the 'smoothness' or amount of spring noise inside the receiver extension is also dependent on the finish inside of the RE. if you feel the inside of the RE, some are very smooth whereas some have light machine marks you can see and feel slightly. the rougher ones will have more 'scraping noise' from the spring as you pull back the charging handle. i've never noticed a difference in reliability between the two, but i just prefer a smoother feeling action when i pull it back.

  9. #59
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    Quote Originally Posted by vicious_cb View Post
    You are probably causing accelerated wear on your trigger. You can ask Bill himself. Unless he says otherwise Im going to keep greasing and oiling my FCG.
    I probably am. Maybe in 50,000 rounds my trigger will be toast. Until then I'll keep oiling my BCG and letting that oil do its work on my FCG.
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  10. #60
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    Mayhap I'm an idiot. I received my A5-Emod kit, the spring was liberally coated in grease, and I did not clean it, and have not since.

    Compared to other ARs of various flavors that I have handled (not fired) mine is ghostly quiet when charging as compared to the others with bone dry springs and RE. All I could say to the others, "Mmmmmm....Gritty."

    As far as the "Twang" noise - never listened for it. Might try on the next outing.
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