QUALITY IS 100% BRAND-NEW GUARANTEEDAR Heavy Duty Tactical Gear Front and Rear Back-up Sight Set for hunting and trainingFull Heavy Duty Polymer Construction for Durability Light Weight and durable designFully 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 SetColor: Black