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. The dovetail mounting bracket allows for quick detachment from your bow and allows you to mount the sight farther away from the riser of the bow.