Out of stock Compare Knights Armament M4 Carb Rail Adapter System 5.56 Knights Armament Company MSRP: Now: $280.73 Was: Knights Armament Company M4 Carbine Rail Adapter System W/3 11-rib Panels,black Finish 98064Model: M4 CarbineProduct Type: RailFinish/Color: BlackDescription: Rail Adapter System w/3 11-Rib Panels MSRP: Now: $280.73 Was: Out of stock Compare