Without giving me any spoilers, I just bought this gun in Wellspring and can't find a vendor that sells ammo for it.

Do I have to wait until I am toe-to-toe with the Authority to get ammo or is there something I'm missing?

hmm I found ammo for it from someone in wellspring.. i think it was the outfitter or maybe it was the vehicle part vendor.

Do you recall what it's called? Is it uniquely named?

The vendor in wellspring does sell it it authority machine gun ammo I do believe, its doesn't use regular AR ammo it has its own type.

Do you mean that guy Coffer? I'll try him again, I didn't see it there, but I'll look now.

Turns out he does have the ammo, I swear this wasn't there when I bought the dang thing. Thanks for your help!

No problem I did the same thing kinda, I assumed it used AR ammo and was kinda bummed when I went on a mission and couldn't use it.

You guys were able to buy it? Huh. I found it inside the Shrouded Bunker, behind a locked door. I had to use a lock grinder that I held precious for something else, but it was worth it.