Just because a lower is marked for three positions means nothing.
My HK 91 lower was three position marked, yet still only fired semi auto.
I could make a list of a bunch of guns i have, or "have", or wish I had. Why would one feel compelled to provide that infornation freely? Do you feel the need to show off? Is it some immature game of oneupsmanship?
Why do you feel it necessary to list your guns?