I have old Leupold 2-7's on my 9422 and 39A, and they are small enough to look right on the small rifles. And I sure wish I had either the Marlin or the Winchester in 22 Mag.
One thing I've added to the 39A is a red LED light (XRL 250, if I got that name right) for shooting skunks and armadillos at night (orders from the wife). The light has a clamp that tightens with a screw knob and most folks attach the light to the scope. That doesn't work well with rifles with front sights. Too much light bounces back off that front sight to allow you to see through the scope. So I found that you can attach the light to the bottom of the barrel with that clamp, even though the barrel has the mag tube below it. Problem solved, and the light is a great addition, giving clear scope viewing for at least 150 yards.