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Posted: 7/31/2011 8:10:08 AM EDT
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My boss at work put hus bolt group upside down and fire the rifle, he called and told me about the malfuntion. I told to talke it apart and reposition the bolt group.
He called bck and said that he took both pins out and it wont come apart (casing still attached to bolt) What can he/we do? `Bri |
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They're exceedingly rare, but such bolts do exist.
Just spitballing here; it sounds like the brass is wedged against the left side interior of the upper, and the bcg is partially back, preventing the upper and lower from being separated. What can you see through the mag well or ejection port? You must somehow either finagle the casing from under the extractor, or use something to realign it with the chamber, allowing the bcg to move forward. Then the rifle can be disassembled. Anyone agree with my assessment? |
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Some bolts are not peened on the opposite of the cam pin hole.
Then the cam pin can be put in the bolt while its installed 180* with the ejector ejecting the casing into the upper receiver wall. The best fix would be to remove the mad, flip the rifle over on its back and use a narrow tool (flat head screwdriver) to push the casing back in line with the bore. The gently let the bolt and carrier go forward and gently re-chamber the empty casing. Do not let the BCG slam shut as this will jam the empty into the chamber. Then when the BCG is mostly forward push the take down pins and remove the upper by pulling up and forward. Then pull the BCG/charging handle out and the empty should fly out. Disassemble and remove the bolt from the carrier, install in the reverse. |
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If the case mouth has already been damaged by being jammed and bent against the left side of the upper and the receiver extension, it would not be a good idea to try to rechamber it.
Might be better to lock the bolt back with the bolt catch, and try to remove the damaged casing working through the magazine well and the ejection port. Once the damaged casing is removed from the bolt the bolt can be closed, and the weapon can be disasembled normally. |
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