The Vism Center Beam Series 3-9x42 Scope w/P4 Sniper reticle & Integrated Green Laser is a extremely high quality scope that will hold up to some of the harshest conditions you can think of. The Vism 3-9x42 scope uses high resolution, multi coated optics for optimum clarity and performance in a variety of field conditions. What separates this Vism scope from the rest of the pack is Center Beam technology. Center Beam technology projects a centrally located laser onto the target for increased visibility and accuracy. The laser can be adjusted for both windage and elevation to ensure proper alignment with the scope’s reticle. Open Target Style Turret Knobs provide audible and tactile ¼ MOA Elevation and Windage Adjustments and are Resettable for easy Zero Recognition. The Vism 3-9x42 Center Beam scope is created out of one solid piece of hard anodized aircraft grade aluminum for maximum stability and durability. Finally this scope is nitrogen purged and o-ring sealed to prevent against fogging and internal perspiration which can hinder or damage your optic.