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"