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Bonehead of the year award goes to me, need help!

This is a discussion on Bonehead of the year award goes to me, need help! within the M16 AR15 forums, part of the Rifle Forum category; So after a shooting session with my FN ar today I striped it down cleaned and reassembled. Somehow I forgot reinstall a very important part, ...


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Old February 24th, 2017, 02:38 PM   #1
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Bonehead of the year award goes to me, need help!

So after a shooting session with my FN ar today I striped it down cleaned and reassembled. Somehow I forgot reinstall a very important part, the firing pin. I did a function check and what happened is the cam pin rotated and the bolt won't close. I can pull the bolt back and forth freely with the charging handle but the bolt won't close.

I've tried using a thin piece of wire to rotate the cam with no luck, as well as a small screwdriver. Nothing.

I can't separate the upper and the lower because the bolt is stuck back just far enough. Any suggestions other than take it to a smith or send it back to the factory?

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Old February 24th, 2017, 02:51 PM   #2
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The bonehead award is all mine , most of the time
The cam pin is held kind of captive by the charging handle
You may be able to use a dental pick through the ejection port to tweak it around
Good luck with your new tough spot

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Old February 24th, 2017, 02:54 PM   #3
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you can't get it out?

you might just have to do a complete strip of the upper

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Old February 24th, 2017, 03:01 PM   #4
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what i wound up doing is using one of those harbor freight type body pullers that i had in the garage,(1/4 20 threaded tip)went to ace hardware and got a 5 1/2 inch 1/4 20 bolt.put bolt in vise 1/2 inch or so sticking out,and beat the bolt head until approx 45 degrees. then took bench grinder and ground the bolt sides flat to the bolt shank,the upward bent tip, fit right into the carrier slot.popped stripped upper into barrel vise,3 shots with the slide hammer,popped apart.

need a vise with wood or a ar-15 barrel vise to hold the barrel

try mortaring it

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Old February 24th, 2017, 04:19 PM   #5
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FIXED!! Never ever do what I did! Upon closer inspection the bolt needed to rotated just alittle bit so the lugs would line up correctly with the chamber. A few taps with a punch and hammer and she went into battery. Thanks

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Old February 24th, 2017, 06:35 PM   #6
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I did this while checking HS on an AR10 build... talk about a pain!

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Old February 24th, 2017, 07:29 PM   #7
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Glad ya got it apart! We've all done something similar.

One of my favorites was a Pfc who brought me his M16A2 with a CHAMBER BRUSH lodged halfway down the barrel. I couldn't decide whether to be angry for his boneheadedness or admire his perseverance. Numerous whacks on the cleaning rod with a 3lb sledge fixed the problem.

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Old February 25th, 2017, 04:18 AM   #8
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And some people say the forward assist is pointless lol. Sarcasm
Glad you fixed it !

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