What can cause a gun to not shoot every 4 shots or so?

Discussion in 'Gun Building, Modifications & Repairs' started by Splode, Dec 2, 2020.

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  1. Dec 2, 2020 #1
    Splode

    Splode Well-Known Member

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    What would cause a gun to dry fire every 3 or 4 shots? When it does shoot a bb, it is a laser and at perfect fps. It is still shooting air out the barrel so it isn't a compression issue. Are there any tests you guys can recommend that will point me in the right direction?
     
    Splode, Dec 2, 2020
    Splode, Dec 2, 2020
    hawkchief likes this.
  3. Dec 3, 2020 #2
    Guges Mk3

    Guges Mk3 Well-Known Member Staff Member Supporting Member Lifetime Supporter

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    Change magazines and try an assortment.
     
    Guges Mk3, Dec 3, 2020
    Guges Mk3, Dec 3, 2020

  5. Dec 3, 2020 #3
    Splode

    Splode Well-Known Member

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    Wouldnt a magazine feeding too slowly just affect full auto?
     
    Splode, Dec 3, 2020
    Splode, Dec 3, 2020
  6. Dec 3, 2020 #4
    Guges Mk3

    Guges Mk3 Well-Known Member Staff Member Supporting Member Lifetime Supporter

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    That depends...some people SPAM SA pretty quickly.
     
    Guges Mk3, Dec 3, 2020
    Guges Mk3, Dec 3, 2020
  7. Dec 3, 2020 #5
    Splode

    Splode Well-Known Member

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    I wasnt when i was testing. About 2 seconds between shots. I cant figure out what it would be. Maybe the gun needs a sector delay chip afterall? Tappet plate?
     
    Splode, Dec 3, 2020
    Splode, Dec 3, 2020
  8. Dec 3, 2020 #6
    Guges Mk3

    Guges Mk3 Well-Known Member Staff Member Supporting Member Lifetime Supporter

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    That should be a more consistent issue and not a every 4 shot issue.
     
    Guges Mk3, Dec 3, 2020
    Guges Mk3, Dec 3, 2020
  9. Dec 3, 2020 #7
    Splode

    Splode Well-Known Member

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    Occasionally it will be twice in a row but id say on average it is every 3rd or 4th shot.
    It couldnt be the small amount of overspin doing this, right?
     
    Splode, Dec 3, 2020
    Splode, Dec 3, 2020
  10. Dec 3, 2020 #8
    aotsukisho

    aotsukisho Well-Known Member

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    Unreliable feeding can manifest in semiauto if your mag follower is binding against the track, or if the follower shape does not promote proper bb doublestacking. I have severe feeding issues even in seconds-delayed semiauto with some very poorly designed G&P mags.
     
    aotsukisho, Dec 3, 2020
    aotsukisho, Dec 3, 2020
  11. Dec 3, 2020 #9
    Splode

    Splode Well-Known Member

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    yeah but ive used these mags before and they've been fine. There arent too many AUG mag makers.
     
    Splode, Dec 3, 2020
    Splode, Dec 3, 2020