Do you find it limiting in its 5+1 capacity and 18.5'' barrel? I'm torn on whether to buy this shotgun or buy the Mossberg Cruiser with PGO, and then add my own tactical stock on it. That way I get a 20'' barrel and the higher capacity. I wish you could just add a mag extension on the 500 series, but I've read you cant do that without replacing the barrel. I won't be hunting, just range shooting and home defense so which way should I go??