Advanced fully multi-coated glass gives you better light transmission with optimum brightness and true color across the entire light spectrum; Precision zero stop system allows you to return to your initial zero position with a sharp and precise stop, right on your initial zero; UHD glass gives you an advantage with an image that has little or no chromatic fringe for the clearest and sharpest image; XPL protective coating gives you extra protection on the exterior lenses to prevent the scope from enduring dirt, oil, and potential scratches; Reticle etched on the glass provides excellent backing support for complex reticle design and offers great durability and much higher shock resistance to recoil; Regardless of how heavy the rain is coming down or an accidental drop in the water, the optics will remain waterproof and shockproof; Aircraft-grade aluminum tube ensures durability and long service life