Frontier. our flagship line of scopes. feature a selection of optical systems designed to give shooters ultimate flexibility in the field. The index matched lenses sets the Frontier optical system apart from its rivals. Exceptional clarity throughout the field of view. together with crisp image transmission ensure an unsurpassed viewing experience. The optical system with its wide magnification range. provides increased flexibility when transitioning between close and long range shooting. Features21 layer fully multi-coated optics 5x ratio optical systemSide focus control for parallax adjustment1 inch mono-tube chassis for superior strengthLong eye relief for high recoil and magnum calibersGlass etched reticle with red illumination6 levels of brightness with off positions in-between1/10 MRAD exposed and locking. zero-stop turretsZoom ring with thumb lever and locking ocularIncludesZoom lever. 4 inch sunshade and flip-up coversSpecificationsColor: BlackFrame: Mono-tubeOptical system: 4-20xObjective: 44 mmReticle: Mil DotIllumination: Red - 6 LevelsEye Relief: 102 mmWeight: 4 lbs.