Just a double check needed

I'm good with buying this kit and upper (when it gets back in stock) to go together with my Anderson stripped lower I just bought, right?

Also, does anyone know what mags this 9mm kit takes?

http://palmettostatearmory.com/psa-9mm-lower-build-kit-no-magazine-504367.html

http://palmettostatearmory.com/psa-9mm-16-mid-1-10-upper-with-hybrid-bcg-and-ch.html