Precision Reflex PRi Fixed Front/Rear Sight w/Thumb Wheel Black. Rear sight has windage knob for side to side adjustment while front has a thumb wheeled front post elevation movement. Both sights are set at 1.4'' elevation. Sights together weight .22 lbs or 3.5 ounces. Specifications for Precision Reflex PRi Fixed Front/Rear Sight w/Thumb Wheel: Manufacturer: Precision Reflex Color: Black Sight Mounting Orientation: Top Mounted Sight Position: Front and Rear Front Sight Color: Black Rear Sight Color: Black Deployable: No Fabric/Material: T6 6061 Aluminum Mount Type: Rail Package Contents: Precision Reflex PRi Fixed Front/Rear Sight w/Thumb Wheel Precision Reflex 05-12829-02: PRi Fixed Front/Rear Sight w/Thumb Wheel Black