Just got my first AR done, built myself with input from others and the fine info on these boards.  I have fired around 100 rounds thru this rifle and am noticing small dents around the face of my buffer.  They appear to be from the buffer hitting the buffer detent whick I know is supposed to hold it in the extension but I didn't think it should be denting the buffer itself.  Any ideas?  I thought that this seemed wrong please let me know something if anyone has any ideas if they have experienced this as well.  Thanks.

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