Heavy Duty Tactical Gear Front and Rear Back-up Sight Set for hunting and training Full Heavy Duty Polymer Construction for Durability Light Weight and durable design Fully adjustable for windage and elevation. Designed for Close Quarter Battle Spring loaded flip-up design, release lever can be reached on left, right & top position. Fits for any standard 20mm weaver rail. Weight: 1.3 oz. Height above rail, stowed: 0.51 inches Length, stowed: 2.6 inches Length, deployed above rail : 1.5 inches Package Includes : Back Up Front and Rear Sight Set Color: Black