Fab Defense Front Back-Up Sight

Can be used as a primary or back-up sight Ergonomic angel-wing-shaped front shroud helps center the image with any rear sight but when used with a matching FAB Defense RBS Rear Back-up Sight it creates a precise optical tunnel that ensures more accurate aiming and faster target acquisition Low folded profile is smooth and inconspicuous and will not snag on gear webbing or brush Instant spring-locked deployment mechanism will not slip break or deform No tools needed for easy rapid elevation adjus