My son is pretty big for his age, but at about 12 years old he was tall enough to use my over and under with the recoil pad removed. I made a thin rubber pad to replace it. I figure if I need an "in between" I will buy a 1/2 pad and fit it until he grows into the full pad.

If you get a gun that is short enough with just the wood, but long enough with the recoil pad on he may be able to use the gun indefinitely.

CHAZ