CNC machined aluminum construction. – #8 Torx style fasteners with steel threaded inserts. – Cantilever design for proper optics mounting. – Places your optic at the Ideal Height for AR and similar platforms. – Up to 2 integrated mounting rails (with the option to remove one or both) for optimal sighting or light systems. – 1/2 tactical nut attachment 65 in/lb. of torque is recommended.