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Old 04-07-2013, 12:01 AM
fuegoman1958 fuegoman1958 is offline
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Unhappy Buffer Retainer problems

I need help--

I was cleaning both my M&P 15 Sport and OR and in doing so I also swabbed out the buffer tube. The problem I am now having is I thought I reassembled the Buffer, B-spring, retainer and retainer spring correctly. But when I pull back on the charging handle, the retainer and retainer spring pop up and jam the bolt. Please help.
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Old 04-07-2013, 08:47 AM
MichiganScott MichiganScott is offline
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How far down did you strip the gun? By your description, you would have had to pull the end plate and receiver extension to remove that pin. You need a special wrench to do that.

Whatever you did, that detent is a captured part. If it pops up, it need to be replaced.
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Old 04-07-2013, 04:12 PM
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JaPes JaPes is offline
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Did you remove the buffer tube when cleaning? The buffer retaining detent and detent spring are held in place by the buffer tube. Screw in the buffer tube until the lip of the buffer tube properly retains the pin, then tighten down the castle nut.
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Old 04-08-2013, 10:49 AM
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Maddmax Maddmax is offline
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Quote:
Originally Posted by fuegoman1958 View Post
I need help--

I was cleaning both my M&P 15 Sport and OR and in doing so I also swabbed out the buffer tube. The problem I am now having is I thought I reassembled the Buffer, B-spring, retainer and retainer spring correctly. But when I pull back on the charging handle, the retainer and retainer spring pop up and jam the bolt. Please help.
I don't remember the manual stating to take the weapon that far down... You could have just swabbed out the recoil tube IF it was dirty.
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Old 04-08-2013, 11:37 AM
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Originally Posted by MichiganScott View Post
How far down did you strip the gun? By your description, you would have had to pull the end plate and receiver extension to remove that pin. You need a special wrench to do that.

Whatever you did, that detent is a captured part. If it pops up, it need to be replaced.
He might have sheared it off.
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Old 04-08-2013, 09:09 PM
MichiganScott MichiganScott is offline
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He might have sheared it off.
I guess it's possible. I just don't know how you could do it without trying.
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Old 04-08-2013, 11:11 PM
BHarada BHarada is offline
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This sounds more like a troll post to me.
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