Jesse can straighten it out for you. He actually answers the questions in the J&T/DoubleStar Industry Forum (unlike many other manufacturers, who take weeks to answer if they do at all).
Their website is a little interesting to use, to say the least. It looks nice, but they are lacking in some of the bells and whistles.
I can see why they'd want to confirm an order like that one, though. An extra LPK AND an extra bolt catch and roll pin? Why two extra bolt catches? Do you have massive black rifle fever like me and need the extra parts for another build?
Nobody (but me) seems to like A2s anymore either. I bet they don't get a lot of calls for those these days.
I'd confirm that order twice or thrice too, if I were in shipping. Lots of folks order what they think they want without actually hitting the right buttons and get what they didn't want. If you don't want an A3-upper M4-clone kit, I guess you stand out.