The Burris XTR II riflescope feature a five-times zoom system, 25% thicker tube construction, dimensionally-matched precision adjustment knobs and Zero Click Stop technology. Superb, high-performance optics offer Hi-Lume multi-coated lenses, optimizing target resolution, contrast and low-light performance. All hand-fitted internal assemblies are triple-spring tensioned for absolute shock-proofing, even under severe recoil and vibration resistant, even on extended vehicular patrols.