Norinco HP 9 and remington 870 barrels

Sometimes they are a bit tight and usually slightly off on the indexing( bead leaning off slightly to one side) in my experience.
It depends on the generation of the 870 there seems to be a bit of variation.
Most people don't notice the minor indexing difference and they do function like that so the general consensus is "no problems".... for the most part.
 
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