"For me and my family, I will use my .410 saiga 15rd shotgun"
I second you on that. I have a Saiga .410 close by in the bedroom. With a 10 rounder already locked in and two more on deck, I don't feel under armed. I would like to suggest a Kushnapup stock. Does a marvelous job of shortening it, making it handier. Mine has a 20 inch barrel but is around 30 inches long or so. I can get back to you with the exact length if interested (I'm couching it right now!
). Also eliminates that "forward" heaviness.