So I've bought lots of lowers in the past; Aero, Spikes, Mega, etc. I'm about to order a couple more, but less well-known (either JL Billet or a re-branded/stamped New Frontier Armory). Shouldn't be any issues though, right? Just don't want any screwups from "not on the list" etc.
How would you say the fit/finish is compared to others? From what I understand the JoeBob Spartan lower is made by them. Other than the engraving, I wonder is there are any other differences?