Weapon Worx posted this on Facebook.

If you look at the picture of the gun closely, you can see cracks in the grip. I find it odd how all the internal components came out of the gun. If what we are seeing is what actually flew off and hit the shooter in the head. For all we know, Weapon Worx may have picked up the pieces and stuck them back together for this picture.

Luckily the shooter is ok.