Looking close at the pictures there seems to be a cutout right above the round portion of the magazine on the right side, like most handguns. I'm guessing that is the ejection area. It's threaded so assuming they thought of suppressed use. Interesting gun for sure, especially for car trips where loaded rifles are typically a no go. Wonder the cost. Kind of reminds me of a much more capable Ruger Charger.
If it's actually reliable (and durable), I'd really be interested in one. I like the sling mount options. With the low recoil of the 5.7, you could slap a RMR or micro red dot on there and have a handy little package.
Still, it is a Kel-Tec, and I've never been able to take that final step from being interested to actually buying. I was all set to plunk down money for a KSG a year or so ago, but the guy at the shop talked me out of it. That doesn't happen often.