Holographic sights are advanced optical devices used primarily in firearms aiming systems. They project a holographic reticle onto a lens, allowing shooters to see the aiming point superimposed on their target. This technology provides a wide field of view and enables quick target acquisition, making it popular among military, law enforcement, and civilian shooters. Unlike traditional scopes, holographic sights do not require precise alignment with the eye, allowing for faster aiming from various positions. They are often powered by batteries and can be used in low-light conditions, enhancing versatility in different environments. Popular brands include EOTech and Holosun.