*adjust the mini red dot, : turn and loosen the two screws above the switch*If you need to adjust the up and down direction of the front sight, please adjust the screws above the red dot * If you need to adjust the left and right wind direction of the front sight, please adjust the screws to the right of the red dot*This tubeless-design reflex lens aperture provides a wide field of view. Suitable for rapid-firing or shooting of moving targets besides normal shooting.