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Forge marks on AR-15/M-16 uppers

Discussion in 'Rifle Discussion' started by BigNickShooting, Jul 16, 2013.

  1. BigNickShooting

    BigNickShooting Centralia, WA Active Member

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    Forging marks/makers.

    A (splintered) = Anchor Harvey Aluminum

    AF = Alcoa Forge

    C AF = Colt Alco Forge

    C MB = Colt / Mueller Brass

    Cardinal (stylized) = Cardinal Forge

    CH = Colt Harvey Aluminum

    CK = Colt / Kaiser Aluminum

    Circle/Crooshairs w/"AR" = ArmaLite

    CM = Colt / Martin Marietta

    D (stylized) = Diemaco

    DK = Diemaco / Kaiser Aluminum

    E = Emco

    EK = EMCO/Kaiser

    E MB = EMCO/Mueller Brass

    F keyhole = FNMI / Cerro Forge

    FA = FNMI / Anchor Harvey

    FK = FNMI / Kaiser Aluminum

    FM = FN/Martin Marietta

    FMB = FNMI / Mueller Brass

    Keyhole = Cerro Forge

    L = Lewis Machine & Tool

    LK = LAR / Kaiser Aluminum

    LM = LAR / Martin Marietta

    M (under diamond) = Mueller Industries

    PA = Capco / Anchor Harvey

    PM = Capco / Martin Marietta
     
  2. PDXSparky

    PDXSparky Keizer / Hillsboro Well-Known Member

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    Now it would really be great if people posted photos of their lowers showing the different forge marks.