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This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT.
Included items:
- Complete 11.5" 5.56 NATO 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 1/2x28
Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.
