What's an old Western Auto Revelation 310A worth? 12 gauge pump with some blueing wear, pretty good wood. Just gonna lop the barrel to legal length and make a little home defense social weapon out of it if I get it. Guy at work has it and wants 75.00 for it and is negotiable. I figure, if it FUNCTIONS, it's worth that. I believe it's built on a Mossberg pattern. Are these any good?

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MARK