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Thread: Experienced Opinions - Short Stroke? Bolt Overrun? BAD?

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    Experienced Opinions - Short Stroke? Bolt Overrun? BAD?

    Shot a carbine match yesterday and this happened to me three times with three different mags. All PMags. Approx. 75rds fired in the match.
    Racked the charging handle and the round went into battery.

    Short stroke? Mag overrun? BAD Lever on new Noveske lower?

    Specs on carbine:
    Gen II Noveske lower w/ BAD lever
    H buffer
    Blue Sprinco spring
    14.5" DD midlength
    IMI M193 ammo



    This only started occurring when I mated the new Noveske lower to the upper. I know...I know...I should have run it more prior to the match. Just didn't see this coming.
    My LMT lower with BAD has never had this issue with all things being the same. Buffer, spring, etc.
    I'll be pissed if this is a lower / BAD issue and it may very well be.
    I intend to take the BAD off and see what happens.

    If not the lower/BAD combo, what direction in buffer, spring should I go? Lighter, heavier, combination of the two?

    What is the experienced opinion of the house?
    Last edited by Scoby; 02-19-12 at 08:33.
    Scoby


    “Laws that forbid the carrying of arms disarm only those who are neither inclined nor determined to commit crimes. Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.”Thomas Jefferson, quoting 18th century criminologist Cesare Beccaria in “On Crimes and Punishment”, 1764

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    scoby, i'm having trouble seeing everything in the pic. are you saying that when you charged the weapon the bolt DID or DID NOT strip a round into the chamber? if i'm reading your post correctly, it sounds like the weapon chambered the initial round appropriately. if that is the case, when this malfunction occurs, does the spent casing get extracted/ejected? have you noticed the bolt locking back after the last round?
    Acta Non Verba

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    just realized... this is your 666th post. spooky.
    Acta Non Verba

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    Kyle, you're right....should have clarified this.

    It happened once on a mag change. Hit the BAD and the bolt didn't catch the round.
    Happened twice during firing.
    Each time I checked the chamber, saw what happened, worked the CH and continued.

    I'm thinking the BAD, but don't know.....yet.
    Scoby


    “Laws that forbid the carrying of arms disarm only those who are neither inclined nor determined to commit crimes. Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.”Thomas Jefferson, quoting 18th century criminologist Cesare Beccaria in “On Crimes and Punishment”, 1764

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    Quote Originally Posted by lethal dose View Post
    just realized... this is your 666th post. spooky.
    Damn....didn't notice.
    Thanks for getting me off it.
    Scoby


    “Laws that forbid the carrying of arms disarm only those who are neither inclined nor determined to commit crimes. Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.”Thomas Jefferson, quoting 18th century criminologist Cesare Beccaria in “On Crimes and Punishment”, 1764

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    haha... no problem. so it WAS extracting every time, just failing to chamber the subsequent round, right? and was the round that failed to chamber still completely seated in the mag?
    Last edited by lethal dose; 02-19-12 at 09:15.
    Acta Non Verba

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    It's all guesswork, however I would do a search about the BAD lever and read some of the various malfunctions people seemed to encounter after installation.



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    Quote Originally Posted by lethal dose View Post
    haha... no problem. so it WAS extracting every time, just failing to chamber the subsequent round, right? and was the round that failed to chamber still completely seated in the mag?
    No extraction problems.
    The round looked just like what is shown in the pic. The round was not completely seated in the mag. It was like the bolt never picked up the round and ran over it but, pushed it forward just alittle.
    Scoby


    “Laws that forbid the carrying of arms disarm only those who are neither inclined nor determined to commit crimes. Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.”Thomas Jefferson, quoting 18th century criminologist Cesare Beccaria in “On Crimes and Punishment”, 1764

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    A lot of different issues going on here so you will want to minimize everything.

    First, load one round into a mag. Fire. Did the bolt lock back? If yes, do it ten more times and see if it does it every time.

    If it does not, put a regular carbine spring in the gun and try the test again.



    C4

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    Quote Originally Posted by Iraqgunz View Post
    It's all guesswork, however I would do a search about the BAD lever and read some of the various malfunctions people seemed to encounter after installation.
    I've read all of them at some point. Probably should go back and take a look.

    I'll get it figured out eventually, just hoping someone may save me some time and ammo.
    Scoby


    “Laws that forbid the carrying of arms disarm only those who are neither inclined nor determined to commit crimes. Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.”Thomas Jefferson, quoting 18th century criminologist Cesare Beccaria in “On Crimes and Punishment”, 1764

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