The Burris Fullfield E1 series offers a state-of-the-art reticle with cascading windage and elevation dots for executing long-range shots in still or windy conditions out to 500 yards. Superb optical glass is precision ground and lenses are multi-coated for glare resistance and maximum efficiency in low-light hunting conditions. Burris Fullfield E1 scopes feature a sleek profile, upgraded windage/elevation knobs and a separated power ring and eyepiece that will accept flip-up lens caps. Burris Fullfield E1s are housed in a one-piece, stress-free tube and internal assemblies are double-spring tensioned for shock-proofing. E1s are resistant to a lifetime of field use, heavy recoil and harsh vibration, and is still protected by the Burris Forever Warranty.