No markings underneath. Just says on the barrel : Made for 2 3/4 and 3 inch shells, 30 inch barrel fixed full choke, made in USAunderneath right in front of the loading opening it should have 500 and some other letters such as A and such.
mine looks very familiar and its an early 70's 500 AT .
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Nothing, the pics I'm showing are the only markings on the gun. I'm starting to wonder if I don't own a clone....Move the forend forward,,,,,whats under there????
Thats what I was starting to believe...Hang on fellas.
What you have there is a Western Field model 550. It is a store brand Mossberg 500 made for Montgomery Ward. There are no Mossberg markings on it due to the commissioned production by a third party retailer...