Nightforce's newest family, Nightforce NX8 F1 Rifle Scopes have evolved from the classic NXS series - scopes proven over two decades in the hands of the U.S. Military, hunters and competitive shooters under the most demanding conditions on Earth. NX8 riflescopes build upon this hard-earned reputation with new technology and a remarkable 8x zoom range, razor-sharp at every setting, a challenge that was vexed optical designers for years. Consider that problem solved. Features:ED (Extra-low Dispersion) glass for superior image qualityCompact lengthCapped windage adjustmentIntegrated PTL (Power Throw Lever)Locking diopter adjustmentComfortably shoot at close ranges or rapidly moving targetsSuperb clarity and resolution at every stepDelivers world of versatility and confidence at every stepIllumination will auto shut off after one hour of no use