Ruger is off to a great start in 2018 with a pretty cool new carbine they just released. Called the Ruger PC Carbine it’s a takedown rifle chambered in 9mm.
The PC Carbine takes both Ruger SR-9 mags as well as the much more popular 9mm Glock mags. It does this via an included interchangeable ma well. The PC Carbine takes down into two parts for easy transport, it includes a threaded barrel, reversible mag released and charging handle for both right and left handed shooters, and a rail on top of the receiver as well as adjustable sights. All this goes for $649. I think Ruger really hit it out of the park with this one.
Check out Ruger.com for more info.