Burris 300266 FastFire E 3.5MOA Red Dot Reflex SightThe Burris FastFire E 3.5 MOA Red Dot Reflex Sight 300266 is a durable, enclosed emitter optic built for pistols, shotguns, and carbines. Made from 7075 aluminum, it's waterproof, shockproof, and fogproof. Burris 300266 features a 3.5 MOA Red dot with an always-on function and a 60,000-hour CR2032 battery. The wide 22x17mm lens and 1x magnification support fast, both-eyes-open shooting. With a 100-MOA adjustment range and ACRO-compatible footprint, it ensures precise, secure mounting—backed by the Burris Forever Warranty..yellow-box p {font-size:16px}.special-tab {color: #FFFFFF}The Burris FastFire Eis is the first fully enclosed emitter red dot in the FastFire lineup, purpose-built for pistols, shotguns, and carbines. Burris FastFire E Reflex Sight constructed from monolithic machined aluminum, it’s rugged, waterproof, shockproof, and fogproof—engineered to perform in any environment. Its 3.5-MOA dot is powered by a long-lasting CR2032 battery with a 60,000-hour lifespan and features an “always-on” design for instant readiness. Aspherical lenses deliver a clear, distortion-free sight picture with minimal glare, supported by eight brightness settings—two of which are night vision compatible—and the option of a red or green dot. Its wide 22x17mm viewing window and true 1X magnification enables rapid target acquisition and both-eyes-open shooting. Fully adjustable windage and elevation with a 100-MOA range and an Aimpoint ACRO footprint ensure precise, secure mounting across platforms. Features of the Burris FastFire E Reflex Sight: Rugged 7075 Aluminum ConstructionAimpoint ACRO® Footprint CompatibilityBrightness Lock & Button LockoutSide-Mounted Battery CompartmentWide 22x17mm Viewing WindowAutomatic Brightness Reset Burris FastFire E 3.5MOA Red Dot Reflex Sight 300266