The Viper Archery Sidewinder Series sights do not require a set screw to maintain desired yardage. Dial the ultra-smooth knob to the yardage desired and shoot! The rugged CNC machined 6061 T6 sight housing will not move and yardage selection will not change. This light weight, durable, sight will provide years of superior performance, and it is MADE IN THE USA. Available in three fiber optic pin sizes 0.010, 0.015, and 0.019.
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