An open holographic sight that projects a red dot in the center of a glass or acrylic pane. It also speeds up the time it takes to aim down the sights by 20%. Compared to the holographic sight, the red dot sight has a less bulkier frame, although the reticle is somewhat blurrier. Nevertheless, the red dot sight is a good addition to any gun that can accept it as it has no major downsides over iron sights. You can use the mouse wheel to adjust the reticle's brightness.