The TA648-50 ACOG reticle features a red chevron aiming point. It also incorporates a bullet drop compensator (BDC) with additional aiming points estimated for trajectory of the .50BMG round out to 1800 meters. To further improve target acquisition and hit potential, the ACOG 6×48 incorporates Trijicon’s Bindon Aiming Concept (BAC) – a revolutionary both-eyes-open method of aiming. Like other members of the Trijicon ACOG line, the ACOG 6×48 is battery free and waterproof to 328 feet. 1 Picatinny rail adapter, 1 large size Pelican case and 1 lens pen also included.