The Leupold 171701, also known as the VX-5HD, is expertly designed to maximize as much exit pupil light as the human eye can absorb. Whether you find yourself in the mountains, traversing wide open plains, or spending a day at the range, this scope is crafted to excel in every environment. The Leupold-made Guard-ion lens coating effectively sheds water and dirt, ensuring a consistently clear view of your target. Furthermore, it features Twilight Max HD light management system that transmits maximum usable light to your eyes for exemplary low-light performance and unmatched clarity. The unique Leupold feature, the two-turn CDS ZeroLock 2 adjustment (Custom Dial System), promises total confidence in undertaking long-range shots, thereby eliminating any concerns about holdovers.