ASPHERICAL LENSES ELIMINATE VIRTUALLY ALL DISTORTION; QUICK, SMOOTH CENTRAL FOCUSING ; TRIPOD ADAPTABLE; DIOPTER CONTROL TO REGULATE VISION IMBALANCE; BAK4 HIGH INDEX PRISMS; PRECISION ALIGNED SHARP, MULTICOATED OPTICS FOR BRIGHT, CLEAR IMAGES; FULL-SIZE ARMORED BODY ; 8 X 40MM