The U-notch rear sight sets feature a precise 3-dot configuration, incorporating two green fiber optic dots at the rear to provide sharp contrast and facilitate rapid sight acquisition under various lighting conditions. For most rifle models, installation does not require drilling or tapping. The dovetailed front and rear sights may necessitate minor fitting adjustments. The rear slide/blade combination is compatible with all standard-sized Williams adjustable rear guide open sight bases, transforming traditional rear iron sights into fire sights. The aluminum blade is equipped with a single U-shaped green fiber optic rod for enhanced 2-dot accuracy. These sights can be used with the existing factory front sight or paired with the fiber optic Williams rifle sight bead available separately.

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