Sig Sauer
Spear Mcx Upper 300 Bo 9 `
Product Code: UAMCX-300B-9B-LT-BLK UPC/Barcode: 798681682522
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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:
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Complete 9" 300BLK upper assembly includes our removable 3-prong flash-hider ready to accept Sig's SLH & SLX suppressor systems.
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Receiver extension delete stock adapter so you may mount any folding or static stock or brace which uses a vertical 1913 rail system.
