Simple lol ...get a Mossberg M590A1 20" bbl 9-shot Battle Tank

....NIB $675.00 is a STEAL I'd still buy one if they sold for $1,000.00 ANY DAY.
I've owned LOTS of Remington 870's ...Express, Express Deer, Express Super Magnum, Marine Magnum, Police, Tacticals, and Wingmaster.....All of them COMBINED don't add up to even half of my Mossberg M590A1 14" Ghost ring sight.
Dual extractors, stronger ejector, more reliable (had multiple jams in 870's) and Super accurate with adjustable Ghost Ring sights, all steel parts in A1 models, thick wall barrels, just a solid built tactical combat shotgun....for freaking $675 NIB ....jeez. My M590A1 is right up there with my Benelli M4 Super 90. Really.
Why waste money on a copy 870 grizzly when for an extra hundred or so, you can get a NIB M590A1 ???