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ar-15 barrel break in

  1. New AR-15 barrel glowing (hot)

    Black Rifles
    We just bought our first AR-15. Stag Arms, Model 2 (223/5.56) chrome lined barrel. We shot 200 rounds in about an 1 and a half hours. On our last magazine my wife dumped the 30rd mag. The barrel was glowing cherry red around the gas tube on the barrel. Probably 3-4 inches of the barrel was...
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