The Advanced Combat Optical Gun sight ( ACOG ) is a series of red dot sights manufactured by Trijicon. Itﾒs a simple concept; a durable riflescope with a reticle that illuminates in low light situations. Trijicon ACOG models provide magnification levels between 1.5X and 6X. Unlike a regular reflex sight, ACOG scope does not require battery power. The superimposed reticle, available in a wide variety of patterns and colors, is illuminated by an external fiber optic light-gathering rail when available light is plentiful and by an internal tritium lamp during low-light use. Airtight seals make Trijicon ACOG scopes waterproof up to 500 feet. Trijicon reflex sight is designed for the requirements of military, law enforcement and airsoft precision shooters for outstanding long-range target identification and hit probability. Trijicon scopes feature superb lens clarity, unmatched low-light capability, and Bindon Aiming Concept for fast, both-eyes-open aiming. Super strong, lightweight, forged aluminum housing and the compact design make these Trijicon sights one of the strongest, most technically advanced, tactical scopes available. You can also visit our scope mounts section, red dot scope accessories page and much more! Also, see all the other product brands and product categories available at Red-Dot-Scopes.com.