The Strike Iron Sights (Suppressor Height) give you an elevated sight picture for a red dot or suppressor pistol setup. The front and rear sights sit at an absolute co-witness position with a slide mounted red dot. Designed to help with proper sight alignment and keep the shooter's eyes focused, there is natural light that is seen on both sides of the front sight between the u-notch rear sight. Steps placed in the rear of both sights help angle and reduce unwanted glares or reflections out of your eyes. Lines and angles designed to use natural light reflections and shadow play to keep user's eye aligned and focused on the target. The rear sight is designed with a negative angle so Mfg: Strike Industries