Side Arm Sams Posted March 6, 2020 Report Share Posted March 6, 2020 New & Unfired is a Factory HK-MR556A1 Complete Upper Receiver (BI) Date Code. Complete with Charging Handle, MR Bolt Carrier Group, 9″ Hand Guard & Flash Hider. Plug-n-Play and Ready for your AR Lower Receiver. Unmolested & Mint condition. $1,450.00 Plus $25.00 Shipping - No Credit Card Fees Florida Residents Subject to 7% Sales Tax https://www.sidearmsams.com/shop/hk-mr556a1-new-complete-upper-receiver-16-1-brl/ sales@sidearmsams.com - 954-960-2596 Link to comment Share on other sites More sharing options...
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