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There are the normal nicks from how old it is, and the right firing-pin tip has been broken off Other than that, the barrel inside and out is as smooth and shiny as my Winchester 1200 pump.
This set of shotgun forearm wrenches covers the Remington 870 in both 12 and 20 gauges, the Mossberg 500 series guns, and the Winchester 1200 and 1300 shotgun.