Gary, there should be plenty of reviews of that shotgun on line; just type in the make, model and the word REVIEW. There will be Utubes too.
The Mossburg 500 and 590 are similar, but the 590/590A1 is the better shotgun made for USMC/LE (not sure if all 590s do, but some have a thicker bbls, and metal safety and trigger guard, not plastic like the 500, and also easier to work on and disassemble, esp the mag tube). On 500, you have to replace the tube for extended mag, on 590 a mag extension can be added).
If certain shotguns are not allowed in NY (or mags), they will not be for sale in any stores in NY. Adding a longer mag tube than allowed will be illegal (if caught).
I have the 930SPX (18.5"bbl) and it is a great shotgun (the 930 is the
only auto shotgun made in America, all other American company autos are imported). It is listed as an 8 shot; 7 in the tube and one in the chamber. I highly recommend a pistol grip and not a straight stock (I mean a straight stock
with a pistol grip, NOT a pistol grip alone); not only does it take up some of the recoil off your shoulder with the hand, but if you have to hold someone under arms (and maybe dial 911), the pistol grip makes handling the firearm one handed much easier than with just a buttstock.
Note, you can get a Mossy 930 auto in a NY legal five shooter. #85320 (no pistol grip, but one can be added)
I realize a higher capacity mag is desirable, but for home defense you want to be careful of going longer than a 18.5" bbl (riot gun). Running around your house with a long bbl shotgun (or rifle) is tough in doorways, and maybe trying to clear bad guys from hidden/tight spaces. The 9-10 round capacity shotguns have 22 and 24 inch bbls, too long for home deffense IMHO. Most shotguns (pump or auto) can take a 4-6rd
sidesaddle easily, so extra rounds are always with you (you do not want a sling with 20 rounds stuck in it... clunky and heavy).
Another thing to keep in mind is that the 930 auto is gas operated and it is widely reported to have nearly 30 percent less recoil than any pump (or recoil operated autos, like Benelli)
I have used stuff from these guys (US company) GGG. Or Nordic Components.
https://www.gggaz.com/mossberg-930-accessories.html Here is a Utube of the SPX. Note, no one can cycle a pump anywhere near as fast as an auto will throw lead. And if you short-rack the pump, you get .... nothing.
https://www.youtube.com/watch?v=7dffQOeYxqw
