Jeff, unfortunately, website notifications still go out as usual regardless it items are in stock or as you know, out of stock. I use these websites to search online real-time inventories for Firearms, Ammunition and Accessories with good luck : ammoseek.com/ ----------- wikiarms.com/ ----------------- https://gun.deals/

2020 set records for most gun sales in a year, and most new gun owners, couple that with everyone still concerned about new "policies" (infringements on our rights) and it is just a perfect S storm for old and new gun owners alike.
Its not likely to get better anytine soon either, if there is a specific item your looking for use that "notify me when available" button on the item page and buds will send you an email when its back in stock (this is how I was able to stock up on 7.62x39 ammo for my AK-47)
And if you still need help finding something that you need sooner post it as a question in the buds community, and sometimes we can locate hard to find items

Due to COVID, there is a huge demand for firearms and not enough supplies. Unfortunately, retailers still emailing advertisements as usual despite not having enough in stock.