Mossberg needs to narrow the skeletonized elevator so shells cannot partially fall through and jam up the gun.
I personally have two Mossberg 500's that I've owned for many years. Both have had thousands of rounds pumped through them with zero malfunctions. I think you are cursed.
I watched it happen to Hickok45. Same exact thing. Shell fell through the skeletonized elevator as he was pumping forward after pumping backward. It was only stopped by its rim from falling to the ground, jamming up his Mossberg pump shotgun. He just nonchalantly stopped what he was doing, and fidgeted with it, working it back up into the action area, then shucked it in, with little comment. He doesn't like to bad mouth the products he's shooting.
Remington was smart to use a solid elevator, lacking skeletonization.
