The Vortex Viper PST Gen II riflescope gives a whopping advantage to shooters in not only close quarters to long-range shots. The side focus adjustment knob has an illumination dial cleanly integrated into it for easy access and streamlined performance. The intuitive, and detailed hold points in the glass-etched reticle are highly functional, while remaining uncluttered for optimal viewing and features 10 intensity levels with off positions between each.