Combining react technology with all of the features of a high end target sight, the React One Pro from Trophy Ridge innovates what a single pin adjustable sight can do. Fast and precise, the React One Pro is a dependable choice year after year, hunt after hunt. The React technology is effective from 330-265 fps and fiber optic yardage indicators are included to help you achieve precision. Offers versatile tool-less micro-click windage and elevation adjustments.