Ordering in the US from Osprey Publishing website

They have a sale now with 30% off books and if you buy 3 you get free shipping. That’s a good enough deal for me to want to do it. I’m a little unclear though as to whether these are shipped from the UK (what I think) or the US (a local distributor perhaps?) and what the shipping time might be. Anyone in the US ordered from the website? What was your experience?