RE: What is missing from this picture?
I bought a Mossberg 835 last year and love it --I assume that's what you were shooting since it's in your list at the end of your posts.
I've had no problems in the year I've had mine, but a friend at work just had the side of the barrel blow up on his Mossberg 500. His thumb had to be reattached at the hospital.
I hope Mossberg isn't using cheap materials to cut their costs.