I did see those, but only for the rear uppers. Is there a reason they don't say Johnny joint, if that is what they are?Here they are.
https://www.rokmen.com/jeep/suspension/control-arms/rokmen/rokmen-hd-rear-upper-control-arms.html#
They don’t say “double adjustable.” But if you look at the pic close and especially read the description, you will see easily that they are.