David, there is no current eta in the current high demand, low supply market. Just place it on both your Wish and Notify Me Lists and Buds will send you an email notification if/when available. I would check on large gun and accessory sites like (6)un (8)roker and Armslist 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.

CHECK G(un)B(broker). They have A LOT of Mossberg 930 SPX available right now. hope this helps!

Your gonna have to look on auction sites like (G)un Br0ker or private party sites like Armslist.com
If a 930 security model would work they are in stock I. A few places
https://gun.deals/search/apachesolr_search/015813853224