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Thread: AR15 shell cases not extracting

  1. #1
    SiB
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    AR15 shell cases not extracting

    Hi
    I was shooting some tin w my NEA AR15 last weekend.

    After about ten shots the cases weren't extracting. I'd need to manually work the extract lever (correct lingo?) to extract. The cases would feel quite hard to pull out.

    It would cycle ok for a couple more shots then jam up again

    Am I doing something wrong??

    I'm new to using my AR, be gentle please!

    Thanks

    Si
    It is .223 cal, I'm using the h&f branded 55gr ammo

  2. #2
    northdude
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    Make sure the gas key is securely attached to the bcg is it a factory rifle

  3. #3
    Member Banana's Avatar
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    What's your setup? Barrel length, suppressor? Does it lock back on an empty mag?

  4. #4
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    brass ammo or steel?
    any marks, dents etc on extracted cases ?

  5. #5
    SiB
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    Ammo is dirty but not damaged.
    It has a suppressor fitted. I'll need to measure the barrel (duh I know)

    The bolt was extracting then closing on last shot

    Gas key attached???? Ooooh maybe I've missed something there? The gas key knob moves maybe a little but not sure what it should move like

    The h&f stuff is brass, it's their recycled stuff I think.

  6. #6
    SiB
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    I'm not sure if it's factory......

    I'm suspecting I need to spend some time face to face with someone who knows these things better than I lol

  7. #7
    Member Banana's Avatar
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    Quote Originally Posted by SiB View Post
    The gas key knob moves maybe a little but not sure what it should move like
    It shouldn't move at all

  8. #8
    northdude
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    I'd offer but to far away

  9. #9
    P38
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    The gas key should not move at all both cap screws holding it in place should be staked to prevent them coming loose.

    That said @marky123 had an issue with his new NEA where the caps crew head broke.

    Also give the chamber and bolt carrier Group a bloody good clean as they get quite dirty, especially with a suppressor attached.

    Cheers
    Pete
    Arguing with an Engineer is like Wrestling a Pig in Mud.

    After awhile you realise the Pig loves it.

  10. #10
    SiB
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    A bloody good clean is my first job yes

  11. #11
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    as above the gas key should be more rigid than a bishop at a boy scout convention. disassemble the rifle and look at the chamber. look for abrasions and "rough bits".
    if its a new gun, take it back.
    if its not, come back to here

  12. #12
    OPCz Rushy's Avatar
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    SiB take heart as you are doing better than me by knowing what a gas key even is, unless it is the pokey outey bit on top of the slidey doodad.
    P38, gadgetman, Beaker and 2 others like this.
    It takes 43 muscle's to frown and 17 to smile, but only 3 for proper trigger pull.
    What more do we need? If we are above ground and breathing the rest is up to us!
    Rule 1: Treat every firearm as loaded
    Rule 2: Always point firearms in a safe direction
    Rule 3: Load a firearm only when ready to fire
    Rule 4: Identify your target beyond all doubt
    Rule 5: Check your firing zone
    Rule 6: Store firearms and ammunition safely
    Rule 7: Avoid alcohol and drugs when handling firearms

  13. #13
    northdude
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    The gas key is the part that's screwed onto the top of the bolt carrier group if its loose it won't be getting enough gas to operate properly the gas doesn't go where its supposed to go is it a new gun

  14. #14
    OPCz Rushy's Avatar
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    Quote Originally Posted by northdude View Post
    The gas key is the part that's screwed onto the top of the bolt carrier group if its loose it won't be getting enough gas to operate properly the gas doesn't go where its supposed to go is it a new gun
    So it is the pokey outey bit on top of the slidey doodad.
    Beaker and Pineapple like this.
    It takes 43 muscle's to frown and 17 to smile, but only 3 for proper trigger pull.
    What more do we need? If we are above ground and breathing the rest is up to us!
    Rule 1: Treat every firearm as loaded
    Rule 2: Always point firearms in a safe direction
    Rule 3: Load a firearm only when ready to fire
    Rule 4: Identify your target beyond all doubt
    Rule 5: Check your firing zone
    Rule 6: Store firearms and ammunition safely
    Rule 7: Avoid alcohol and drugs when handling firearms

  15. #15
    P38
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    Quote Originally Posted by Rushy View Post
    So it is the pokey outey bit on top of the slidey doodad.
    @Rushy

    Yes but that's it's technical name.

    Only known to those who constantly worship the false King of beers

    Most people know it by its common name of gas key.

    Cheers
    Pete
    Last edited by P38; 30-05-2017 at 06:40 PM.
    Beaker, Gibo and Tommy like this.
    Arguing with an Engineer is like Wrestling a Pig in Mud.

    After awhile you realise the Pig loves it.

 

 

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