[link|http://world.guns.ru/main-e.htm|world.guns.ru]
And since you're considering shotguns for home defence, perhaps the [link|http://world.guns.ru/shotgun/sh08-e.htm|Neostead] is one you should look into.
HTH!
[Edit:] And for when you really need some punch, forget the puny [link|http://www.hqmc.usmc.mil/factfile.nsf/7e931335d515626a8525628100676e0c/9867a7c6f72a0ad08525627c006cb4ef?OpenDocument|MK19 40mm] some wimp linked to -- go with the [link|http://world.guns.ru/machine/minigun-e.htm|GAU-8/A][*] in stead! ;^)
[*]: Scroll down the page a bit; it's the picture to the left of the insectoid-looking Russian helicopter (A "Hind", I think).