HHA Optimizer Sight 5019 1 PIN .019 RH CNC machined aluminum single pin sight that features the Armor pin in a 1 5/8" sight housing and 3' of wrapped fiber optic.. Tool-free micro adjust windage for easy sight adjustments and green sight ring for quick target acquisition.. Accepts lens kit B and Blue Burst sight light.. Made in USA. Model Number: OL-5019-RH.