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Thread: Doublefeeds: Primarily a function of the magazine? Extractor? Op system issue?

  1. #21
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    Quote Originally Posted by MK18Pilot View Post
    A double feed does NOT involve a spent cartridge, period.
    Word^

    The spent cartridge has already been FED during th previous cycle.

    That is an interupted or dropped extracton or a failure to eject.

    98% of those are caused by extractor issues and the rest by ejector issues.

    It helps no one to call two dissimilar malfunctions by the same terminology.
    My brother saw Deliverance and bought a Bow. I saw Deliverance and bought an AR-15.

  2. #22
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    Quote Originally Posted by Heavy Metal View Post
    It helps no one to call two dissimilar malfunctions by the same terminology.
    I have to assume you mean someone else, as I asked about doublefeeds a/k/a two live rounds attempting to be fed in to one chamber.

    The other issues this weapon is experiencing, I have a handle on how to correct, or attempt correction. In the instances where a live round and spend round try to go in the chamber (not what I asked about) I am replacing the extractor spring and o-ring. I will also inspect the ejector tension and channel.

    Just trying to see if the magazine is the primary culprit for doublefeeds, if other issues are eliminated.
    "I'm not saying I invented the turtleneck. But I was the first person to realize its potential as a tactical garment. The tactical turtleneck! The... tactleneck! - Sterling Archer"
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    "Courage is not the absence of fear, but rather the judgment that something else is more important
    than one's fear. The timid presume it is lack of fear that allows the brave to act when the timid do not."

  3. #23
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    Pop out the BCG, and place and empty casing on the bolt face.
    Press against the extractor using the empty casing and your thumb to check for tension - does the extractor spring seem over-sprung, or under-sprung?

    Part of it sounds like an extractor tension issue, to me.

    Maybe check for bolt bounce - has the hammer or trigger had any problems?

    Overgassed guns can do that, and a trigger problem could help diagnosis.

    Do you know the size of the gas port?

    I'd take IG's advice and replace the gas rings, and a heavier buffer.
    We miss you, AC.
    We miss you, ToddG.

  4. #24
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    It is likely mags but can be overgassed or have a bad buffer/spring assembly.

    A bud of mine had a middie that double-fed with Lancer mags. A heavier buffer fixed it.
    My brother saw Deliverance and bought a Bow. I saw Deliverance and bought an AR-15.

  5. #25
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    Quote Originally Posted by Heavy Metal View Post
    It is likely mags but can be overgassed or have a bad buffer/spring assembly.

    A bud of mine had a middie that double-fed with Lancer mags. A heavier buffer fixed it.
    He said the magazines were new.
    We miss you, AC.
    We miss you, ToddG.

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