The Kriss USA Defiance Rear Flip-Up Sight offers a sleek low-profile design ideal for AR-15 enthusiasts. Crafted from durable steel this sight ensures robustness while maintaining a compact form rising just 14.22mm above the rail when folded. It features dual apertures with 1.5mm and 4.5mm diameters catering to various lighting conditions and precision needs. The sight's intuitive design allows it to fold completely flat regardless of the aperture used enhancing user convenience. The large textured adjustment knob simplifies windage adjustments even with gloves on providing a seamless shooting experience.