The Firefield Impulse 1x28 tactical red dot sight is ideal for target shooting and hunting on rifles and shotguns. This parallax corrected compact sight features a cantilever mount design, allowing it to be mounted forward for use with a magnifier. Its hard-wearing structure aids the Impulse in handling up to .50 caliber recoil and 48.6-1000 hours of battery life. This is achieved from a single AAA battery. The extremely lightweight 9.6 oz red dot sight is shockproof, fog proof and IPX5 weatherproof. Hand adjustable windage and elevation add to the user-friendly design of the Impulse. Included in the package are lens caps and battery. Included in Package Manual Lens caps CR2032 Battery Batteries Used Type: AAA Quantity: 1 Features Red reticle illumination Parallax corrected optical system Lightweight and durable Cantilever mount design Uses easily accessible AAA battery Hand adjustable windage and elevation Flip up caps