The Kriss USA Defiance Rear Flip Up Sight is a sleek and practical addition for your AR-15. Crafted from durable black polymer this low-profile sight is designed to integrate seamlessly with your firearm. When folded it sits just 14.22mm above the rail ensuring an unobstructed view. It features two apertures a small 0.061-inch for precision and a larger 0.184-inch for varied lighting conditions allowing versatility in different shooting scenarios. The sight folds down completely flat regardless of the aperture in use for maximum convenience. Windage adjustments are straightforward thanks to the large textured knob that is easy to maneuver even with gloves on. Perfectly engineered for the AR platform this rear sight ensures accurate and user-friendly performance.