Mine jes' wont go in that way, backwards. Had that problem all my life. Mac.
I don't have an AR but just flipping the mag around in my head it seems it could be either backwards or unpside down to get the curve the way it is in the picture.
That had to be a photo op setup... that mag doesn't even have the right angle to be inserted very far.
I don't think it is a photoshop job, I think they had her pose for the camera for the paper. I would hate to hear how bad this hit the PD there.