I am currently looking for a 6.5x20 matte efr leupold with the target dot model #55154. I noticed that some have AIR RIFLE written on the adj bell. I dont think mine ever had that on it. Is there 2 versions of this scope or any difference in that one has air gun written on it?

All Leupolds handle the double recoil of a spring airgun. However only the EFR models have 10y focus to make them useful with airguns.

FOUND ONE!!!!!