Sig Sauer MCX Spear LT Upper-Assembly Conversion Kit, 7.62x39mm, 16 Barrel, Black, Upper Receiver
This complete kit will convert any Mil-Spec AR-15/M4 lower into the top-performing MCX-Spear LT.Included ItemsComplete 16" 7.62x39mm upper assembly includes Sig's removeable 3-prong flash-hider ready to accept their SLH & SLX suppressor systemsReceiver extension delete stock adapter so you may mount any folding or static stock or brace which uses a vertial 1913 rail systemRequires the use of AR-15 7.62x39mm compatible magazines.Thread pitch 5/8x24Compatible with the following lowers:MCXM400516Any Mil-Spec AR-15/M4
