There are three basic types of sights for a shotgun. The open sight has a fiber optic front bead with a fiber optic rear trough. Line the front bead up with the rear sight and point it where you want it to go. It’s a very simple and very effective shotgun sight. The red dot sight has a glass reticle where you line up the front bead in the middle of the glass and aim it at your target. Red dot sights allow for a more comfortable shooting position than the open sight. And the third type of shotgun sight is a standard scope. Just as you would use a scope on a rifle, you can have the same for your shotgun.