HK416 / MR556 Bolt Carrier Groups

HK416 / MR556 Bolt Carrier Groups

Ensure flawless reliability in your HK MR556/416 platform. Choose from original HK bolt carrier groups, US-made variants, enhanced carriers, chrome-lined options, complete bolt carrier groups, and semi-auto carriers. 

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    New - HKP HK MR556/416 Upper 9" 416C Style Conversion Kit - HKP-18674 HK416, MR556 Upper 9" 416C Style Conversion Kit

    HK416, MR556 Upper 9" 416C Style Conversion Kit

    HKP HK Parts

    $899.95
    MR556 & HK416 Upper Conversion Kit - 9" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...
    $899.95
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    $899.95
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