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Posted: 9/1/2026 2:19:23 PM EDT
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I bought this upper from a friend of mine. He thinks this is a Rock River Arms upper with a Fail Zero BCG. The only marking that I can find is 222S/Raw, 03/09/16 and an A stamped. The barrel seems to be a heavy barrel. Questions: Is this upper made by RRA? Is it 222 or 223 caliber? Appreciate all the help I can get to identify this barrel. Thank youAttached File Attached File Attached File |
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The list of RRA barrel codes I have is quite old(20yrs) but I'm fairly certain it's a National Match barrel chambered in .223 Wilde. RRA Barrel Codes |
Now with more political fatigue.
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