HK416 / MR556 Receivers / Uppers

HK416 / MR556 Receivers / Uppers

Upgrade the core of your HK MR556 or HK416. Choose from genuine HK receivers, complete upper receiver groups, and stripped uppers for custom builds. 

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    New - H&K HK MR556/MR762/416 Buffer Staking Tool - HKP-16945

    HK416, MR556, MR762 Buffer Staking Tool

    H&K Heckler & Koch

    $0.00
    HK 416, MR556 & MR762, HK 417 - Buffer Staking Tool - German HK Rare HK factory HK staking tool for the castle nut to be staked. These took over 3 years to get and offered for cost while supplies last! Each tool is the factory correct tool used for...
    HKP-16945
    $0.00
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