Their entire line of mouthpieces hasn't been made since the late '90s/early '00s (the company itself confirmed this). I've been looking for a big tenor one and a soprano one (my last instructor has THREE of the sopranos!!) for quite a few years now. They're really great when you can get one.
The last time I checked their website, Weiner Music had a few Eagles — a 7 and 9 for alto, a 6 and 7 for tenor, and two sopranos — and a low-baffle Deep-V 7 for tenor. It seems to be the last bastion for them… and it's where I was lucky enough to snag my V alto. Otherwise, eBay or the Marketplace is your best bet; I haven't seen them commercially available for a long time.
An insider friend told me that the company is trying to bring them back, but it's an issue of cutting production costs. The "originals" apparently cost a lot of time and money to form and finish and weren't too in-demand with the public (after all, don't most people still only associate "Rovner" with "ligatures"?), which also might explain the relative rarity of them compared to handmade Guardalas and such.