A defensive shotgun is built differently from a field gun: shorter 18-to-20 inch barrel for moving indoors, larger capacity tube, sights you can use under stress, and mounting points for a light. This collection holds the 12 gauge configurations we would actually stage for home defense - Mossberg 590s, defensive 870 variants and their competitors.
Pattern your gun with the buckshot load you plan to keep in it; our staff can recommend loads from the 12 gauge shells shelf that balance payload against overpenetration. NJ buyers need an FID card, and both stores can talk through a complete home defense setup.