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Thread: m4 wont fire subsequent rounds

  1. #1
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    m4 wont fire subsequent rounds

    Charge the gun. Cocks the hammer. Chambers round. Pull trigger. Fires shot. Extracts/ejects spent case. Feeds next round. Nothing... hammer's not cocked. Ideas? Thanks.
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  2. #2
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    Sounds like the disconnector isn't holding the hammer.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  3. #3
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    Holds on initial manual charge. Everything is brand new... fresh build.
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  4. #4
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    If you have another hammer, disconnector and or disconnector spring try these.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  5. #5
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    manually charging the weapon, squeezing the trigger, maintaining hold on the trigger, re-charging the weapon, releasing the trigger, pulling the trigger... nothing. disconnector. thanks nate! (and robb ) just dono why, yet. brand new lpk.
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  6. #6
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    Wrong spring under the disconnector?

  7. #7
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    nevermind, i retract my statement. it does catch the hammer. i hate to hotlink tos... but my lower does exactly what it should according to this:

    http://www.ar15.com/content/guides/a.../lower/#hammer



    when i charge the gun, it cocks the hammer. when i squeeze the trigger, it fires. when i maintain pressure on the trigger and recharge the weapon, the hammer stays back when i release the trigger.
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  8. #8
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    seems the contact points are catching. (thanks, nate... AGAIN.) will lube and cycle and report.
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  9. #9
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    So, on the second attempt (with live ammo) the hammer is cocked, but pulling the trigger will not drop it?

    Just clarifying.
    Jack Leuba
    Director, Military and Government Sales
    Knight's Armament Company
    jleuba@knightarmco.com

  10. #10
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    Quote Originally Posted by Failure2Stop View Post
    So, on the second attempt (with live ammo) the hammer is cocked, but pulling the trigger will not drop it?

    Just clarifying.
    not sure. it seems to cycle dry now. im at my dad's so i can't shoot right now, but it seems the trigger wasn't resetting... like the contact points needed worn a little. common?
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