Shape and profile are designed for maximum rigidity and extreme use - Minimal point of impact shift for NV aiming devices - Longer 4140 Barrel nut to provide stability of the handguard - Machined heavy-duty anti-rotation tabs - Uses the MI patented torque plate to provide no forward movement of the handguard - Two steel anti-rotation QD sockets for maximum strength and placed to minimize gun roll - Body constructed of 6061 Hardcoat anodized aluminum - Fully Dehorned and Deburred - 5-Slot polymer M-LOK Rail included - Seven Sides of M-LOK - Outside Diameter: 1.85 - Inside Diameter: 1.30 - Made in the USA - Lifetime Warranty