The M830r a compact, powerful laser rangefinder is universally suited for all military services and tactical units. It's the perfect combination of Steiner binoculars with a powerful class 1/eye safe laser for determining range to targets, plus a SUMR reticle for targeting redundancy in case of battery failure or out-of-range target. No other bino/rangefinder 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, Sports-Auto 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 14-psi pressurized dry nitrogen into the optic, for fog proof protection. Includes neck strap, objective cover and rain protection cap.