Viper HS 4-16x44 LR Riflescope An evolutionary upgrade, Vortex Viper HS riflescopes offer hunters and shooters an array of features sure to be well received. A new optical system highlighted with a 4x zoom range provides magnification versatility. The ultra-friendly eye box with increased eye relief gets shooters on target quickly and easily-because shooting opportunities can be measured in fractions of seconds. Built on a ultra-strong 30mm one-piece machined aluminum tube, the Viper HS delivers increased windage and elevation travel for optimal adjustment. The Viper HS 4-16x44 LR (Long Range) model features an exposed tall elevation turret with Vortex's CRS (Customizable Rotational Stop) zero stop. Combine that with 75 MOA of elevation travel (24 MOA per revolution) and you get a riflescope perfect for dialing precision long-range shots.