Id recently gotten a Mossberg 835 from a friend and have been working towards using it as a home defense weapon. I liked the 590A1's that my unit had when I was in the Army and the feel was almost identical minus the 835 being heavier. I ordered the 18.5 inch barrel from Mossberg and am just waiting for it to arrive now. There are a few things I want to modify on it still but I'm admittedly not anywhere near as knowledgeable with shotguns as I am with rifles or handguns so figured it's better to ask for advice and help to do what Im aiming for than mess something up or buy something that wont work or something of the sort. Basically, Im wanting to find a good pistol grip without the shoulder stock to it, would like to find a magazine extension that isn't going to end up sticking out farther than the barrel like I'd read the Choate one does, and find a decent tri-rail forgrip pump for it as well. And some recommendations on which types of ammo would go well for what Im using it for without having to worry too bad about over penetration. Any help with any of this stuff would be greatly appreciated. Thanks all!