I am brand new to building 80% lowers. I just received my 5D tactical pro jig; so I am looking at purchasing a couple 80% lowers.
For my first build; I would like to build a AR based 9mm pistol and I would like it to have the last round bolt hold open function. I found this company, http://aaomfg.com/, and they have a Smith and Wesson 9mm M&P mag lower with the feature that I was looking for. I haven't been able to find any builds using this lower or much info on this company. Heck, I can't even find another 80% lower based Smith and Wesson.

What do you think of their 80% lowers and/or does anyone have any good options for a 80% 9mm lower?

Click Me this will take you to the already compiled list of 9mm lowers and theirs descriptions. I’m also interested in getting a few.