When you say "like the M16-9" do you mean rifles that look like the M16 in 9mm? Or do you mean rifles that fire the 9mm, like the M16-9?
Either way, yes. There are 9mm AR15 rifles and 9mm top end conversions for your existing AR15 rifle. There are also a number of rifles available in 9mm. There are cheap HiPoints, expensive HK and many in between. Go to gunbroker, click on 'rifles' then search for 9mm within the 'rifles' category. You will find some things to look at including those I mentioned and many more.