Take a large paperclip, straiten it out and wrap it around the barrel at the muzzle. twist the ends into a straight tail, and turn the tail so it stands straight up.
This is a temporary very tall front sight.
Clip it with a side cutter at about 1/2" and shoot.
It will shoot low. Clip the sight a bit and shoot again.
Keep doing this until it shoots to where you aim.
Now you know how tall a sight you need.