How to turn on the laser aiming of aurora? How did the red dot in the middle come from?

Hello, aurora infrared ray was bought in a personal warehouse, just like destruction. There is a switch infrared ray at the bottom of the aurora weapon. The switch infrared ray is a straight red line, not a point, and it begins to weaken in the center of the sniper sight. Personally, I feel that aurora infrared rays are not suitable for being attacked, and infrared rays are useless. Might as well buy destruction. It has the vision of the destroyer, and the recoil after shooting will not be too great, which will make the gun head rise and make it uncomfortable, and it feels better than Aurora. Having said so much, I hope to adopt it. Thank you.