This model will not be back in stock, unless someone sells buds a used one, this model is no longer in production.
Sig 220 legion for sale here
armslist.com/posts/13358849/massachusetts-handguns-for-sale-trade--preowned-sig-sauer-220-legion--45acp

Covid restrictions/shutdowns and panic buying has caused shortages in guns and other prosucts and
While I am sure that buds has them on order there is no way of knowing when it will be back in stock. I suggest that you use the notify me button. Buds will email you when they are back in stock This in no way obligates you to purchase the item. We are not buds employees we are volunteers that answer questions

William, Bud's does not anticipate getting this item back in stock.

William, unfortunately there are no reliable eta for restock Sir. I would check on large gun and accessory sites like (6)un (8)roker and Guns International 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. --------------- gunsinternational.com/

The 220 legions ate still being produced and will hopefully be back in stock soon, buds stocks them when available in 10mm and 45acp.
budsgunshop.com/search.php?q=Sig+220+legion&type=