The Firefield Impulse 1x28 tactical red dot 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. The Impulse handles up to .50 caliber recoil and one AAA battery provides up to 48.6-1000 hours of use. This sight is shockproof, fog proof, waterproof and weatherproof. Includes lens caps and battery.