The Trijicon ACOG 1.5x16S RTR in .223 is a fixed magnification riflescope designed for rugged reliability in any lighting condition, featuring dual illumination with fiber optics and tritium to keep the reticle visible without batteries. Ambient light automatically adjusts brightness and contrast via the fiber optics, while the tritium-phosphor lamp glows in low light, ensuring rapid target acquisition across day, dawn, and dusk. Built in a forged 7075-T6 aircraft-grade aluminum housing, this compact scope weighs about 5.1 ounces (without mount) and delivers near-indestructible performance for fast-moving teams operating in close quarters or speed-oriented competition. External windage and elevation adjustments with tool-less caps and a lanyard help preserve zero in challenging environments, and the included Trijicon Q-LOC mount provides a low-profile, return-to-zero platform compatible with Mil-Spec or NATO Picatinny rails. The 1.5x16 model offers a wide 7.4-degree field of view, a red RTR reticle optimized for .223, and BDC capabilities alongside BAC for quick, intuitive target engagement on M16/M4 platforms, making it a trusted choice in combat and competition.