Sig Sauer MCX Spear - LT 5.56 NATO Complete Upper 16"

This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT.

Features:

• Complete 16" 5.56 NATO upper assembly includes our removable 3-prong flash-hider ready to accept Sig Sauer's 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.
• Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.

Specifications:

• Model: Sig MCX
• Caliber: 5.56 NATO
• Thread: 1/2x28
• Color: Black