Thanks Old Mossy - Very possibly - except there is no mention anywhere that I can find (online or in books) of a 183T (or any variant .410 BA) ever being made in Stainless, or a polished Mariner finish. This one is definitely Stainless, as a magnet won't stick to it. I even called Mossberg and spoke to someone who was supposedly the long term Guru there, and he said he never heard of it being made in Stainless.