I checked out my 500 more closely to look at the forend. I think I can see how it broke in that photo. That part of the support is very thin. I can flex it with my finger. While looking at it, I was reminded of when I just got my 500. I don't know if this would have anything to do with it breaking or not, though. Anywho, the wiry part that acts as a tension to keep the action bars down, was disconnected on one side for me. It must have been that way from Mossberg. It was simple enough to put back into place, but it makes me wonder if that piece isn't seated correctly if it cause a stress that leads to a break. Being that part of the support is so thin, it wouldn't surprise me if it could break like that. If my forend breaks, I'll use that as an excuse to get the Hogue forend and stock I've been wanting to get.