• BATTERY-FREE ILLUMINATION: Features a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light
• RUGGED ALUMINUM-ALLOY HOUSING: Forged 7075-T6 aircraft-aluminum-alloy housing provides for a nearly indestructible sighting system
• “BOTH EYES OPEN” DESIGN: The ACOG can be used as a CQB sight when shooting “both eyes open,” utilizing the Bindon Aiming Concept. The ranging reticle is calibrated for 5.56(.223 cal) flattop rifles out to 800 meters
• COMBAT PROVEN: No other magnifed optic has been used more in combat than the ACOG. Assembled Product Dimensions (L x W x H): 8.25 x 6.62 x 3.62 Inches
• BULLET DROP COMPENSATING & RANGING RETICLES: The red Chevron ranging reticle allows for bullet drop compensation out to 800 meters for 5.56 (.223 cal). Exit pupil-8mm 

 The Trijicon ACOG (Advanced Combat Optical Gunsight) 4x32 BAC is a fixed power, compact riflescope with a dual-illuminated reticle (tritium and fiber optics) for domination in bright to low/no light. It comes with legendary durability and reliability and offers reticle patterns for numerous calibers. BAC stands for Bindon Aiming Concept, which means the ACOG's illuminated reticle allows aiming with 'both eyes open' for superior situational awareness.

There’s a reason one million ACOG 4x32 scopes have been trusted by the United States Marine Corps, United States Army, United States Navy, United States Air Force, United States Special Operations Forces, allies around the world and hundreds of thousands of civilian enthusiasts.