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japarker82

MBX pcc buffer retainer

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Today at practice I experienced a failure.The buffer retainer pin sheared the nipple off. Does anyone know what could cause this. I only have about 1000 rounds in it so far  

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It happens, alot of people i know just run without em.

 

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It seems the buffer itself is travelling past the retainer pin after it rebounds against the back of the buffer tube. I mean with a longer buffer, plus the fact that many are running a longer 308 buffer spring equals a frakload of tension/potential energy against retainer pin.

 

But yes, many run without it. Just wear safety glasses whenever you take apart your receivers or prepare for a shot in the cheek! lol

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