Ultra lightweight and compact design, Built with ultra-tough composite construction. TRU-TOUCH soft-feel technical coating. Innovative pin design improves sight picture and protects fibers. Quick and easy fiber replacement. Aperture has 1.8" inner diameter and large circular field of view level included. Reversible bracket for greater vertical adjustability. Glow-in-the-dark shooter's ring. Adjustable for left and right-handed users. Adjustable light included.