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Why is there a buffer in an AR?


MaineMan2

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Ian just uploaded a great video on Forgotten Weapons that answers this question. 
 

The most fascinating thing to me is that originally the bolt carrier was really long and included what is now a separate part - the buffer. This confirms my thoughts that it is the combined weight of the BCG and the buffer that matters. (Please ignore the optical distortion in the pic.)

761B0245-5CC9-4B90-90CE-95B74F34834D.jpeg

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