The STS2 is C-MORE Systems' smallest reflex sight. Just like our competition sights, the STS2 head up display provides an unobstructed sight picture in which the red dot hovers on the sight line, illuminating the point of impact on the target, creating the fastest target acquisition in existence, and unlimited eye relief. Similarly, it uses a beam-splitter lens made of glass; hard coated for maximum scratch resistance, and light transmission, while the parallax-free design enables targets to be acquired without the need to center the dot in the lens.