Daisy BB guns have both a front and a rear sight and generally have only an adjustable rear sight. To sight-in your Daisy BB gun, you need to shoot the BB gun repeatedly, so you must ensure that you have a shooting area that is restricted, so no people or pets can walk into the shooting range, and use a target attached to a soft backstop to eliminate the chances of the steel BB ricocheting.
Items you will need
Foam backstop
Paper target
Screwdriver
Step 1
Set the foam backstop in the area you will sight-in the BB gun and place the paper target in front of the backstop. Make sure the backstop is sturdy; you do not want the backstop falling over after you shoot the BB gun.
Step 2
Load the Daisy BB gun per the gun's operating instructions, use the sights to aim toward the center of the target and pull the trigger to fire the air rifle.
Step 3
Walk to the foam backstop and compare where the BB hit the paper target in relation to how you had the BB gun aimed.
Step 4
Loosen the screw located on front edge of the rear sight by turning the screw counterclockwise with the screwdriver. Slide the sight left if the BB hit the target to the right of the location you were aiming or right if the BB hit the target to the left of where you where aiming. Tighten the screw to relock the adjusted sight.
Step 5
Slide the sight elevator forward with your hand to adjust the elevation of the BB gun. You need to slide the sight elevator forward if the BB hit the target higher than you were aiming or backward if the BB hit the target lower than you were aiming.
Step 6
Reload the BB gun, aim and fire at the paper target with the adjusted sight. If the BB does not hit the paper target where you are aiming, repeat Steps 4 and 5 to adjust the sights until your Daisy BB gun is properly adjusted.