SIG MCX-SPEAR LT 6.75″ AR CONVERSION KIT 300BLK-BLACK
This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT.
Included items:
Complete 6.75″ 300BLK upper assembly includes our removable 3-prong flash-hider ready to accept our SLH & SLX suppressor systems.Receiver extension delete stock adapter so you may mount any folding or static stock or brace which uses a vertical 1913 rail system. Thread pitch 5/8 in – 24
Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.
Specification
- Model SIG MCX
- Caliber 300 BLK










