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 Items

• Complete 16" 7.62x39mm upper assembly includes Sig's removeable 3-prong flash-hider ready to accept their SLH & SLX suppressor systems
• Receiver extension delete stock adapter so you may mount any folding or static stock or brace which uses a vertial 1913 rail system

Requires the use of AR-15 7.62x39mm compatible magazines.

Thread pitch 5/8x24

Compatible with the following lowers:

• MCX
• M400
• 516
• Any Mil-Spec AR-15/M4