MR556 A4 Upper Receiver

  • HECKLER AND KOCH (HK USA) MR556A4 UPPER KIT 5.56MM 16.5"

    HECKLER AND KOCH (HK USA) MR556A4 UPPER KIT 5.56MM 16.5″

    $2,179.00

    HECKLER AND KOCH (HK USA) MR556A4 UPPER KIT 5.56MM 16.5″

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  • HK UPPER MR556A4 5.56 11" BLK

    HK UPPER MR556A4 5.56 11″ BLK

    $2,179.00

    HK UPPER MR556A4 5.56 11″ BLK

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