it would have to be gas or piston operated.
but it looks like the bolt carrier group was too big to fit a standard charging handle so they made it a side charger.
bet its a blast to shoot... literally.
after a bit of reading, gas pressures aren't much higher then 5.56. but volume is probably imense. if they built that rifle right(which i'm sure they did or at least hope for that price) the dwell time is correct, a heavy buffer and spring is used it should be fine. the bolt face takes all the abuse anyway.