Brick and Mortor stores need to keep the lights on. And they have employees at the retail locations, they keep a separate inventory to keep customers coming in the door in the community they live and work in.
You can always hit the notify me when available button to receive an email when they come back in stock.

Buds keeps the retail and online sale/inventory separate

Buds (and other gun stores) operate as drop shipper. They have warehouses (often time own by separate distributors) that send out orders for them. They basically get a commission for online sales. This is why Buds inventory in retail stores and online is very different. I hope this helps!

Buds treats in store inventory separately from online inventory. In store is available for local patrons only according to Buds. Cheers and stay safe!