Cutting-edge engineering and modern precision-machining techniques allow the Razor HD AMG to achieve optical and physical specifications normally reserved for heavier scopes with larger tube diameters. Optically, these scopes deliver unparalleled image quality. Our proprietary ALO automated laser optical alignment process forges a new paradigm in the sport optics industry, resulting in the most forgiving, comfortable, and highest quality images possible. The APO objective lens system uses index-matched lenses to correct color across the entire visual spectrum. HD premium extra-low dispersion glass delivers the ultimate in resolution and color fidelity, resulting in High Definition images. XR Plus premium fully multi-coated lenses increase light transmission for optimum brightness. ArmorTek protects exterior lenses from scratches, oil and dirt.