The 4x32 BAC ACOG is a combat-proven optic featuring a dual-illuminated reticle powered by fiber optics and tritium, ensuring a bright aiming point in any lighting condition. Specifically calibrated for M193 ammunition (5.56, 55gr FMJ) fired from a 16 inches barrel, it offers precise bullet drop compensation out to 800 m. The chevron reticle is designed for a 100 m zero at the tip, with a 5.5 MOA base width representing 19 inches at 300 m allowing for quick and accurate range estimation on silhouette targets. Built for durability and precision, this scope delivers unmatched performance in the field. Most ACOG models are battery-free, featuring a tritium/fiber optic illuminated reticle that adjusts based on available light Both eyes open shooting with Trijicon's Bindon Aiming Concept (BAC) enhances situational awareness for improved targeting No other magnified optic has been used more in combat than the ACOG, showcasing its proven durability and reliability Several ACOG models feature a user-adjustable brightness setting powered by a single AA battery, providing (6) brightness levels for optimal visibility The high-quality glass and multi-coated lenses maximize light gathering capabilities, offering a clear, distortion-free field of view Proven to withstand recoil from calibers ranging from .22LR to .50BMG, easily passing U.S. Military drop test requirements for durability The fixed-power design minimizes moving parts, creating a nearly indestructible sighting system for long lasting performance Most ACOG models come equipped with a bullet drop compensating and target-ranging reticle, ensuring precise and decisive aiming Exceptional waterproof performance that exceeds military standards, with dry nitrogen filling to eliminate fogging and ensure clarity in any condition This optic is rigorously tested to perform in extreme conditions, with dry nitrogen-filled housing to prevent fogging