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Thread: Colt AR15A4 ... to A2?

  1. #11
    Join Date
    Jun 2018
    Location
    AZ
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    P MP NATO 5.56 1/7

    Forge code on receiver is P A (Anchor-Harvey)

    Markings on left side of FSB are B (RI) 2

    The RI mark is inside a circle as (RI)

  2. #12
    Join Date
    Jan 2008
    Location
    AZ-Waging jihad against crappy AR's.
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    According to some stuff I have read, those uppers were made by SACO Maremont as part of a PIP/ upgrade program for the U.S. Air Force in the late 1980's.



    Owner/Instructor at Semper Paratus Arms

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    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

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