Providing a battle-proven optics design for the vaunted .50 BMG was the aim with the Trijicon ACOG 6x48mm Scope, offering a built-in reticle that's purpose-built for aiding ballistic calculations with this big-bore round out to 1,800 meters. The Trijicon ACOG 6x48mm Scope includes all of the battle-proven elements found on all ACOG sights, including dual-illumination technology that incorporates fiber-optic tubes and tritium-assisted illumination for both daytime and nighttime use. The system is also rated waterproof up to a depth of 500 meters. Built with Red Chevron 50 BMG Ballistic Reticle Includes RM02 RMR red-dot optic Weight: 40.5 ounces Adjustment Mfg: Trijicon