The Burris FastFire E is the first fully enclosed emitter red dot in the FastFire series, designed for pistols, shotguns, and carbines. Crafted from durable machined aluminum, it is waterproof, shockproof, and fogproof, ensuring reliability in any environment. Featuring a 3.5-MOA red dot with an "always on" function, it provides instant readiness powered by a CR2032 battery with an impressive 60,000-hour life. Its distortion-free, glare-resistant aspherical lenses offer enhanced visibility with eight brightness settings, including two night vision modes. The wide 22x17mm window and 1x magnification enable fast target acquisition with both eyes open, while the fully adjustable windage and elevation and Aimpoint ACRO footprint ensure secure and precise mounting.