HK-MR556A1 Complete Upper Receiver 10.4″ Barrel with Quad Rail by TDyer

NEW & UNFIRED is a Factory HK-MR556A1 Complete Upper Receiver, New Production, Date Code (CC), 2022. Barrel was Cut, Crowned to 10.4″ and Threaded 1/2 X 28 by TDyer Gunsmith. Has a  9″ HK-416 T-Marked Quad Rail Hand Guard. Includes Factory Charging Handle, & Complete Factory MR556  Bolt Carrier Group and Factory Bird Cage Flash-Hider.  Factory Gas Block is unvented and Barrel Port was Relieved/Opened for Suppressed & Unsuppressed Fire. Test Fired in both Configuration by TDyer Gunsmith only for Function. Upper Receiver was a New Unfired Fresh Take-off prior to being Converted.

Ready for your SBR or Pistol Build.

ALL NFA RULES APPLY.