The Trophy Ridge React V5 Sight combines innovative React Technology with exclusive vertical in-line pins for extraordinary precision and an unobstructed view of your target. React Technology accurately predicts what each pin gap will be based on the distance between your 20-yard pin and any other yardage and is effective from 330-250 fps. Once you have two pins sighted-in accurately, the rest of your pins will be automatically set, it's that easy! The React V5 Sight is designed with a glow-ring, level, and sight light for consistent stability. The Ballistix copolymer system has the strength of aluminum, but is 25% lighter. The soft touch Ballistix coating delivers added vibration reduction, guaranteeing a straighter, more accurate shot. Also features a 2nd axis adjustment and tool-less windage and elevation adjustments.