My guess is that they will not charge backorders. They may confirm the order with an confirmation number but if the item is on backorder, I would think that it wouldn't be charged until shipped.
After a lot of thought I ended up getting a standard 10x with the level and rings. If I am still in love with a fixed 10x by the spring, maybe I will upgrade to the HD model.
On the orders, if it is back ordered, you will see an initial charge authorizing the card but that disappears a few days later. They won't fully charge until it ships. I've gone through a couple back orders and special orders with them, and they're great.
Ordered the 1-6×24. I'm putting this on a DPMS Recon .308. This is my first build up on an ar rifle. This scope is 4 times more than any scope I've bought before. I'm excited to get this scope, next will be mount and trigger. I guess I'll be working some over time.
I ordered mine on Friday and got the ship notice today. 16X fixed. You had to open the actual item description, select your ring preference, and then add to cart. If you tried to do it without pre-selecting the rings it would give a removed from cart unavailable notice. Kinda hokie and I had to make a trip to their FB page to figure it out, but they were available.