** WARNING! The addition of certain parts such as Collapsing/Folding Stocks, Pistol Grips, Flash Hiders, etc. might make your firearm illegal within California. Please ensure your firearm remains CA compliant. **
** The Sig Sauer MCX-Spear upper pictured is California legal as is. CA compliant parts or modification are the buyer's responsibility when built into firearm. **
This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT.
Included items:
- Complete 16" 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.
