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Posted: 3/28/2011 7:03:02 PM EDT
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Just assembled a new upper, and the bcg is getting shiny on the flat parts on either side of the key, and on the bottom. My other BCG hasn't done this at all, but this one has within the first 100 shots. Is this normal?
http://i927.photobucket.com/albums/ad111/RocketmanOU/18.jpg http://i927.photobucket.com/albums/ad111/RocketmanOU/17.jpg |
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