It's still listed on savages website, so its still in production, just out of stock.
Did find one at scheels sporting goods ( no shipping in store pick up only)
scheels.com/p/savage-arms-220-bolt-action-slug-shotgun-with-accufit/1700-57377.html
Or if there are no scheels near you
Here are a couple retailers who will ship
https://gun.deals/search/apachesolr_search/savage%20220

Robert, this is about as rare as hens teeth Sir. I would check on large gun and accessory sites like (6)un (8)roker, Armslist and Guns America as discontinued and hard to find firearms and accessories show up for sale by private individuals and small shops. Just replace (6) & (8) with G & B.