There are rifle scopes and then there are rifle scopes. But when you look through a Leupold scope, you can quickly see the difference between the best and the "also rans".
Leupold scopes feature some of the finest optics available and when you add in their rugged toughness, it's a hard combination to beat.  Leupold scopes come in a couple of varations for the air gun and rimfire world, namely their EFR rifle scopes. EFR stand for Extend Focus Range which allows the shooter to focus down to the close distances that many air gun shooters encounter. So if you're looking for top quality choices for your favorite airgun, check out the EFR rifle scopes from Leupold.