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Old November 26, 2009, 11:45 AM   #15
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Join Date: May 29, 2007
Location: St. Louis, MO area
Posts: 4,039
So the threads are actually the same size, so there is no difference in the receiver just the tube?
That's it exactly. The commercial tube production method of cutting the threads from a slightly larger diameter tube is cheaper, hence its use on those intended for the civilian market.
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