DYNALIGN TECHNOLOGY: Concentric Sight Picture Most BUIS systems utilize a sight picture that is non-intuitive. The brain's visual systems are asked to align a circular rear aperture with a rectangular front post shape while simultaneously ignoring the "ears" that protect the front sight post. Dynalign's circle-within-circle sight picture allows for faster sight picture acquisition. Additionally, the use of a front aperture further reduces parallax effect which makes accuracy less dependent on precise sight alignment. Dynalign is a faster and more accurate sight picture that can improve shooting performance. DYNALIGN FRONT SIGHT TECHNOLOGY: Always-Centered Sight Pin Adjusting the front sight pins on a competitor BUIS creates a non-concentric front sight picture where the pin is not centered in the front ears. Dynalign front sight elements move together, maintaining a concentric sight picture at all times. Dynalign is a faster and more accurate sight picture that can improve shooting performance..