Trijicon 100224 ACOG Black Hardcoat Anodized 4x32mm Illuminated Green Horseshoe .223/5.56 BDC Reticle

The ACOG is internally-adjustable compact telescopic sights with Tritium-illuminated reticle patterns for use in low light or at night. It combines traditional precise distance marksmanship with close-in aiming speed. This model is designed for use with the M16 family every feature of its mechanical and optical design was chosen for a single purpose: to provide increased hit potential in all lighting conditions without failure prone batteries.