That's cool but that robotic pooch had a hard time absorbing the recoil. The target was never shown and actual hits were never counted. I'm assuming this demonstration was done here on comfortable ol' Earth. What's going to happen in 1/6 the gravity?

The weapon should be positioned much closer to the center of gravity, possibly turned upside down with the magazine on top. The mass will change with each shot but that should already be a consideration.