Athlon Optics , Cronus , Riflescope , 4.5-29 x 56 First Focal Plane (FFP) 34mm Tube, Illuminated APLR MIL Reticle , Hd Glass gives you the utmost contrast, light transmission, and the sharpest image First focal plane reticle stays valid at all power settings allowing you to fully utilize the Specially designed reticle that shrinks or grows along with your target as you zoom in or out Advanced fully multi-coated lenses gives you better light transmission to bring optimum brightness and true color across the entire light Spectrum Reticle etched on the Glass that provides excellent backing support for complex reticle design and offers great durability and much higher shock resistance to Recoil Argon purging gives you better waterproofing and thermal stability