The HCGenerate I believe is still out of stock for another two weeks. If you can't wait, double dosing bridge works just as good.
For shipping to APO make sure you put the APO in the "notes to shipper" on NTBM.
When you order from Mr.Supps see if they allow you to do the same... if not, order, and send them an email right away with the APO info and they will take care of it. Someone I know had the same question. They emailed Mr.Supps after placing the order and got a response within a couple hours. You will be fine if you do the same.