Mossberg 835UM camo. After 10,000 rounds of 3" and 3 1/2" steelshot and lead 2 3/4 dove loads I sent it back to the factory for a rebuild, fully expecting to pay. They replaced the slide, bolt, and everything but the stock, trigger, and receiver. They even re-camoed it to match the new ported barrel. Total cost, $83 including the shipping. They only charged for the barrel. Now, that gun had paddled the boat, been left in the swamp, dropped in the water, and basically put through hell. It finally wouldn't extract anymore, as much as from shooting rusty shells in a dirty chamber as anything.
In my opinion, the 835UM is the "AK-47 of shotguns."
t2e