The KonusPro LZ30 has an advanced dual locking system designed to lockin your final adjustments and reset your bezel to zero with precise accuracy. Its unique dual illuminated 3030 etched reticle provides a blue and red floating crosshair for low light conditions that is unbreakable. The onepiece 30mm tube coupled with the fullymulti coated camera quality glass offers a rugged instrument for extreme conditions with maximum light transmission regardless of the time of day.