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Thread: Gas Ring Replacement Question

  1. #21
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    Quote Originally Posted by jaxman7 View Post
    Every McF gas ring I've put in (minus the one problem child) are stiff when placing the bolt back in the carrier and the first several hand cycles but loosen up quickly.

    -Jax
    I'd probably still be loosening up the one I tried. LOL

    Given their reputation and the fact that people like IG use them I suspect I may have just gotten a bad one, but it was enough to turn me back to standard gas rings.
    Steve

  2. #22
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    Yeap,there are several one piece type rings floating around and the quality varies depending on source.
    Ive purchased the one piece rings from G&R,Armalite and DPMS and used them in various Armalite,LMT and DD BCG's over the past few years. No problems,and like IG I have yet seen the need to replace any Ive installed.
    From my understanding Armalite holds,or did at one time in most recent past,the patent on the McFarland,and they specify the dimension on the product they sell for the M15 and AR10 series.

    More info on the subject:
    https://www.m4carbine.net/showpost.p...&postcount=103
    Last edited by Blankwaffe; 09-19-13 at 17:12. Reason: ETA
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  3. #23
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    To fall further from the initial thread

    Quote Originally Posted by SteveL View Post
    I'd probably still be loosening up the one I tried. LOL

    Given their reputation and the fact that people like IG use them I suspect I may have just gotten a bad one, but it was enough to turn me back to standard gas rings.
    I've found that the finish inside the carrier has a lot to do with longevity of the gas rings, and of course the clean and lube cycle they receive. Shortest life was an Armalite carrier with a definate need to replace at 1,500 rounds. Longest so far is a Colt light weight or halfmoon carrier going strong at 4,000 rounds.

    Regarding MacFarlands, I am pro the one piece, and have experienced no difficulties.

    However, regarding the quoted experience above; This proves the need to verify even the simplest changes when servicing a weapon. That rifle SHOULD have run perfect with just a ring job. I also feel firing a few more rounds should have worked it in.

    My 2 centavos

  4. #24
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    I had a Noveske that was fine at 4,000 rounds. One of my friends has changed barrels (tens of thousands) before changing gas-rings. From what I understand, their wear is over-hyped on the internet.

  5. #25
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    Quote Originally Posted by 308sako View Post
    I've found that the finish inside the carrier has a lot to do with longevity of the gas rings, and of course the clean and lube cycle they receive. Shortest life was an Armalite carrier with a definate need to replace at 1,500 rounds. Longest so far is a Colt light weight or halfmoon carrier going strong at 4,000 rounds.

    Regarding MacFarlands, I am pro the one piece, and have experienced no difficulties.

    However, regarding the quoted experience above; This proves the need to verify even the simplest changes when servicing a weapon. That rifle SHOULD have run perfect with just a ring job. I also feel firing a few more rounds should have worked it in.

    My 2 centavos
    It might have worn in eventually, but it would have taken a lot more than a few rounds to do so.
    Steve

  6. #26
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    Service life of gas rings depends on the surface finish of the tunnel in which they ride. In short, service life of gas rings depends on the carrier, and for each carrier, the rule is simple; They last as long as they last.

    If your carrier "eats" rings in 1,500 rounds, changing brands or designs won't change that. changing loads won't change that. Only a different carrier will change it.

    Gas rings; a buck each. A new carrier, which may or may not be better/easier on rings? $50 to $150. You'd have to eat up a sixteen sets of gas rings to equal the lowest-cost carrier, which at 1,500 rounds each is 24,000 rounds.

    Short answer; there are better things in life to worry about.

  7. #27
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    Before each shooting session I squirt several drops of Breakfree LP into the gas exhaust ports. I figure it's cheap insurance for gas-ring life.

  8. #28
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    Quote Originally Posted by Uni-Vibe View Post
    Before each shooting session I squirt several drops of Breakfree LP into the gas exhaust ports. I figure it's cheap insurance for gas-ring life.
    I know that's been recommended. I still wonder how much it helps...seems like the oil would be gone after the first round or two from the hot gas.

  9. #29
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    Lube the bolt carrier group generously. In addition the gas is dropped into the carrier where the tail of the bolt is which is why most of the carbon build up is there.

    Quote Originally Posted by bmg View Post
    I know that's been recommended. I still wonder how much it helps...seems like the oil would be gone after the first round or two from the hot gas.



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  10. #30
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    Quote Originally Posted by WS6 View Post
    Thank-you. I have read all of Spike's propaganda, and the concept actually seems to have merit if extended service intervals are the goal. I guess I'll just have to put the rubber to the road myself, on this one.

    Have the McFarland's provided any increase in reliability for you?
    Not really sure why you would need to considering how cheap gas rings are and how easy they are to replace. Spikes has a long history of making snake oil products, like their powdered buffers for one.

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