What does available for back-order mean on bass pro shops website?

"Available for back-order" on Bass Pro Shops' website indicates that a product is currently out of stock but can still be ordered. When you place a back-order, the item will be reserved for you and shipped when it becomes available again. This option allows customers to secure items that may have limited availability without having to wait for restocking notices. Keep in mind that back-ordered items may take longer to arrive than in-stock products.