Posted: 4/14/2015 9:51:26 PM EDT
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I was perusing the site checking out the spring sale items and I was wondering if I could get some more information on buffer tubes. Looking through the buffer tubes/receiver extensions I noticed that although many of the descriptions listed them as "mil spec" none of them listed whether the tube was made from 7075 or 6061 aluminum. Can you tell me which tubes are 7075 and which aren't?
Thanks 
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