The M830r a compact powerful laser rangefinder is universally suited for all military services and tactical units. Its the perfect combination of Steiner binoculars with a powerful class 1eye safe laser for determining range to targets plus a SUMR reticle for targeting redundancy in case of battery failure or outofrange target. No other binorangefinder combo will deliver the image and ranging accuracy and reliability of these military veterans. Perfect for mobile troops who travel light. Features a floating prism system ergonomic design N2 Injection system SportsAuto Focus System NBR Rubber Armoring and Makrolon housing is durable polycarbonate with NBR Long Life rubber armoring creating a lightweight rugged chassis that withstands 11 Gs of impact Makrolon housing and N2 Injection system seals 14psi pressurized dry nitrogen into the optic for fog proof protection. Includes neck strap objective cover and rain protection cap.