hk53a3 Posted October 26, 2018 Report Share Posted October 26, 2018 (edited) MR556 Upper like new comes with spring and buffer, all 100% HK German. I can replace quad rail with hkey mod if you prefer. Shipped and insured $1425.00 CONUS. Edited October 26, 2018 by hk53a3 Link to comment Share on other sites More sharing options...
Recommended Posts