how do you get the primal weps for the new classes?

are they craft only or do they drop from hard/ex?
(im talkin ifrit/garuda/mooglemog/titan not bismark/ravana)

Primal Focus quest turn-in.

There are new Ifrit/Garuda/Titan/Mog HM drops. As well as Shiva/Ramuh/Leviathan EX.
You can also craft upgraded versions of the I/G/T/M series just like you could normally, and upgrade Shiva/Levi weapons.

I got my moogle astrologian weapon from Thornmarch Hard. Granted it doesnt glow but still cute.

I also saw the Moogle gun from the Thornmarch Hard. So yes, they normally drop from the battles.