Nikon s Black Force1000 rifle scope delivers extreme targeting speed, repeatable precision and superior accuracy for your AR/MSR platform. The design is for both-eyes-open engagement as well as aiming precision for extended ranges. The body is constructed of aircraft grade 6061-T6 aluminum alloy a with black Type-III hard anodizing finish and a 30mm main body tube. The lenses are fully multi-coated with anti-reflective compounds for consistently bright, sharp, high contrast sighting at all magnifications.