I looked up some 80% lowers - and for the price they are listed I may buy a CNC machine and start making them. Several sites are selling them for $50+ a piece.
Well, I went back to the manufacturers website. And if you scroll down there is a slew of faqs.
Good news! They say use any jig designed for a milspec lower! Yay
Yes. I do see that now. Great news for you. A standard jig may be used. But the ejector and LRBHO must be removed before it will fit into a jig. That is one of the problems with my pistol caliber builds. The ejector is not removable in any of mine. But mine use the Glock and Colt SMG magazines. I haven’t seen one of these AAO lowers. They sound great.
So, my original plan was to find out if a CMMG 9mm Banshee upper would fire with this M&P mag lower. Since the lrbho and ejector are removable on the AAO lower... hmmm? ( the banshee 9mm uses a milspec ar lower)