No idea, but Mossberg also has a major customer that Remington never had: the US Marine Corps. So, even if they're not buying thousands of receivers each year, there's still a steady stream of both major and minor components being produced that essentially subsidizes the overall production line. Remington doesn't have that. Remington has nothing to support their sales, in comparison. @
AMC works at one of the larger police departments in the US, and even his potential order only represented a few hundred units. Ever since LE started moving to 5.56 carbines and away from shotguns, I don't think it's hyperbole to describe the Remington Police line as trivial.
The note about marketing is certainly well stated, though. Just check out the "Retrograde" Mossberg line. Now just think if they apply an interest to LE sales, I think Remington's Police lineup is as good as dead since Mossberg's subsidized production line gives them a huge leg up in deals they could offer to departments looking to replace their shotguns, which even for a large department is still a pretty insignificant number of guns. Remington could be approached to do a special run and I'm sure they will, but just imagine the price difference between buying a special run 870P vs a current production Mossberg 590A1 that is
already in production and they likely have enough sitting at a distributor right now to fulfill your whole order before the month is even over. I can't imagine Remington would even be able to come close on price, options, etc.