Rear Back Up Polymer Sight flip up with Windage Adjustment

"• Low profile snag resistant design • Shroud protects aperture from debris and impact damage • Dual peep, same plane aperture allows for perfect co-witness • Unique closure with either aperture deployed • Can fold to the rear, the correct direction if dropped • Sight works in conjunction with all standard height front sights • Manufactured using a specially developed Military Grade reinforced, super tough polyamide • Rail clamp nut has been redesigned so that there is no spin out when overtightened • All plastic components have been changed to a higher strength material. • Retaining pin for the cover has been redesigned so that the pin does not slip out of position. Weight: .5oz Height: .879"""