I've been given the laborious task of building a blingy $2,000 sbr for a friend
. I've been looking into a 9mm build using Stern Defense's Mag AD-9 adapter and the BAD upper/lower with the VERT pdw stock. Problem is nobody has all the components. I think I've found the upper and 9mm Vert stock but not the lower. To be honest, I've heard of BAD but never paid much attention due to the cost. I am a little concerned why no one seems to have everything in stock. Is BAD having trouble with manufacturing / supply? Is demand too high to keep in stock or demand too low to justify the manufacturing expense? Thanks for the info.