For the last 31 years, yes. Vari-X III, VX-III, VX-3, VX-3i. Still have, and use for hunting, at least one example of each.
On a light mountain rifle it's still my fav--especially with the B&C reticle.
Also, as TOM noted, they have had a 36mm objective for decades.
Last edited by alpinecrick; 11/25/20.