The Trijicon Compact ACOG is a smaller, lighter weight version of the full-sized Trijicon ACOG ideal for fast-moving tactical teams operating in close quarters. This rugged, dependable aiming system clearly illuminates its reticle in bright light, low light or no light at all without having to rely on failure-prone batteries. Plus, it's internally adjustable and is much more durable than conventional designs. Some Trijicon Compact ACOG models incorporate the Bindon Aiming Concept (BAC). In tandem with scope magnification, this both-eyes-open aiming method provides the shooter with "instinctive" target acquisition and increased hit potential. The reticle is available in red or amber, with a choice of a triangle, a dot or crosshairs.