The KONUS FEARLESS 4-16x50 tactical rifle scope features First Focal Plane (FFP) optics with an illuminated Advanced Ballistic reticle and robust 34mm tube diameter for superior light transmission and durability.KONUS FEARLESS 4-16x50 FFP Tactical Rifle Scope34mm tube diameter with black matte finishIlluminated Advanced Ballistic reticle for precision targetingSide parallax adjustment for enhanced accuracyLocking target turrets for reliable adjustmentsField of view: 30.2-5.9 feet at 100 yardsWeight: 24.5 ounces Length: 13.66 inchesEngineered for tactical applications and precision shooting this scope delivers professional-grade performance with its FFP design ensuring reticle accuracy at all magnification levels making it ideal for long-range shooting hunting and tactical operations.