That doesn't seem 'automatic' to me. It seems to be a semi-auto shotgun and an ugly one at that. Maybe this is an older firearm?
straight recoil with no lockup. Watch it bounce when it reloads. Not an open bolt slam fire so it should be ok except if you happen to fire it on the bounce if it is possible. The way it breaks down it doesn't look like a gas operated system so looks like recoil. So does the heavy metal coming back. To much metal flying around near my face to make me happy. Seems like the metal should at least be in a shroud and didn't see much in the way of feed lips either. The shell just poped up and was slammed into the chamber. I think I will stay with Remington 1100. Thanks for posting it. It is certainly different in a retro sort of way.