Ar-15 question for today!

Discussion in 'AR-15 Discussion' started by Sniper03, Oct 4, 2012.

  1. Sniper03

    Sniper03 Supporting Member Supporter

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    Wanted to share these pictures with you. I know what caused this but will let you guess. I will confirm if anyone gets the correct answer and explain how it happened. This is the worst "Catastrophic Event" as the industry calls them otherwise a (BLOW UP) I have ever seen in an AR. The Upper Receiver was also separated into 5 separate parts. The Picatinny Rail on top was blown off completely from the receiver along with both the Take Down Lug and Pivot Pin Lug which were also separated completely from the receiver. In addition both sides of the receiver were apart.

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  2. jjfuller1

    jjfuller1 New Member

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  3. purehavoc

    purehavoc New Member

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    Since squib was taken let's say it left the round in the chamber and when stripping another from the Mag it jammed the tip of the other round into the primer causing it to go off and taking both rounds with it ?
     
  4. dog2000tj

    dog2000tj New Member

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    from the way the bolt is damaged I would venture to guess a round went off while not in the chamber, maybe while at the feed ramps. How i'm not sure yet, but I do not believe that even a squib would damage the middle of the bolt and before the lugs of the bolt.
     
  5. c3shooter

    c3shooter Administrator Staff Member

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    Have seen obstructed bore damage- reloads too long- chambered a round, which pushed into the leade, extracted, pulling the brass but leaving bullet lodged in leade, and loaded and fired a 2nd round.

    The broken bolt and split bolt carrier would indicate YOWZAH pressures. MIGHT have been an out of battery firing, but if round is not chambered that would usually blow brass out the ejection port.

    Only other thing that occurs would be a reload with a fast powder (Bullseye) and WAY too much, driving bolt back so hard it broke at the bolt retaining pin, destroying the bolt carrier. Folks that do that are known as CUDA (Covered Up in Dumb Ass)

    So what the heck DID that?
     
  6. SSGN_Doc

    SSGN_Doc Well-Known Member

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    1. Squib
    2. Overcharge
    3. Obstruction in barrel
    4. Wrong powder used in reload (pistol or shotgun powder)
    5. Out of battery firing.
    6. Polymer gun or Blackthorne built gun ;)
     
    Last edited: Oct 4, 2012
  7. Quentin

    Quentin New Member

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    Good one! :D
     
  8. AgentTikki

    AgentTikki New Member

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    Simtex? Mebbe just plastique.......:p
     
  9. USEBOTHHANDS

    USEBOTHHANDS New Member

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    hot-loaded reload.

    gas tube wasn't staked, or wasn't staked properly...........came loose, jammed bolt carrier, and "when he set the charge off, the gator lost his mind!"
     
  10. fsted2a

    fsted2a Active Member

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    Water in gas tube?
     
  11. purehavoc

    purehavoc New Member

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    Ummmmmmm , Where is the cam pin :D Someone forget to put it back in ?
     
  12. Triumphman

    Triumphman Active Member

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    Somebody reloaded their rounds with Black Powder and they squibbed when they did a double tap?
    Del
     
  13. mich1377usmc

    mich1377usmc New Member

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    This was an industry demo right, don't do this or this happens, if not is the ID 10T shooter alive & well or scattered all over the range like his BCG. Mickey
     
  14. slog

    slog New Member

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    Squib or oil in barrel leftover from cleaning? If it's a trick question, maybe a stuck firing pin and firing out of battery?
     
  15. Tenderribbs

    Tenderribbs New Member

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    It's odd that the bolt Carrier gas key is unharmed? Don't know what that means! Looks like it wasn't staked or staked properly. It should of scarred the carrier where the screws would of Been ripped out.
     
    Last edited: Oct 7, 2012
  16. slog

    slog New Member

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    I'm no expert, but just from appearance, I'd say it split from the front of the bolt, and the bolt got rammed backwards splitting the carrier, releasing the threading from the gas key fasteners, and the pressure blew the gas key up out of the way unharmed. Just guessing from the look of it. I'm wondering what the receiver and chamber looked like.
     
  17. Tenderribbs

    Tenderribbs New Member

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    Sorry didn't read your reply before I wrote my response I think were on the right track tho! Tenderribbs
     
  18. Tenderribbs

    Tenderribbs New Member

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    Come on I can't sleep until This is figured this out! And im tired! I never stay up until 1230 in the morning.
     
  19. slog

    slog New Member

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    I've been waiting all day. I even went out looking at similar failures. Most were "unknown," diagnosed as squibs, although none had the split carrier. That must have been one powerful round or a complete obstruction on a locked bolt.
     
  20. Tenderribbs

    Tenderribbs New Member

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    I agree that isn't a 55 grain Walmart round that did that.