The Burris FastFire E is the first fully enclosed emitter red dot in the FastFire series, engineered for pistols, shotguns, and carbines. Built from monolithic machined aluminum, it’s waterproof, shockproof, and fogproof—ready for any environment. The 3.5-MOA dot with an "always on" feature ensures instant readiness, powered by a CR2032 battery with 60,000-hour life. Its aspherical lenses provide a distortion-free, glare-resistant view, enhanced by eight brightness settings (two night vision compatible) and a choice of red or green dot.