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12/15/2017 11:52:10 PM
Posted: 7/31/2001 12:13:20 PM EST
I looking at the barrels on my AR-15's and found one that is marked "SS" 5.56. The barrel is not stainless steel, at least a magnet sticks to it (but not to my Mini-30 Stainless). The barrel is 16". Also at gun shows I see at least 5 upper receivers with a little symbol cast in the carry handle and some without any markings. Anyone ever researched these to find out the actual manufacturer.
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