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Type: Posts; User: RCS; Excluded Forums: Milsurp Knowledge Libraries (READ ONLY)

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    more photos of the Colt 606 barrel

    The Colt 606 heavy barrel was designed for automatic fire and the first attempt to use a heavy barrel on the AR-15/M16 receiver. The twist was 1 in 12 on the barrel.

    I have fired this barrel at...
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    triangular handguards on heavy barrel Colt 606

    The first heavy barrel (1 in 12 twist)that used triangular hand guards was the Colt 606, four variations manufactured. I found this upper years ago in almost new condition.112087112088112089112090
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