There's no question that the Double Defense is inferior to pumps in every way. I just posted it because it looks Shadowrunesque. First, the price on the Double Defense is about $470. The Mossberg 500 and the Remington 870 both cost less. Second, the Mossberg and Remington pump actions both have at least 3.5 times the ammunition capacity. Third, you can switch out the standard stock on the Mossberg and Remington for a Knoxx stock. So case closed. The only advantage the Double Defense has, and it's a slight one, is that the time between your first and second shots is faster, because you don't have to work a pump. Further evidence that the Double Defense is a few upgrades on an obsolete platform - Bose speakers on a tape deck - is that no police department or military that I know of has fielded the double barreled shotgun in the last fifty years.
And by the way, Saigas are inferior all around. Shotguns are by their nature CQB weapons, and the Saiga is too long for easy handling in CQB environments. Customer support for Saigas in North America is crap. Try getting spare magazines. I dare you. While there is a world of accessories available for Mossbergs and Remingtons, like rails, ammo racks, and replacement stocks, there aren't for the Saiga. And finally, the Saiga gets only, what, 5 rounds? And in a box magazine, which, unlike a tube magazine, can't be easily topped off under fire.
And by the way, Saigas are inferior all around. Shotguns are by their nature CQB weapons, and the Saiga is too long for easy handling in CQB environments. Customer support for Saigas in North America is crap. Try getting spare magazines. I dare you. While there is a world of accessories available for Mossbergs and Remingtons, like rails, ammo racks, and replacement stocks, there aren't for the Saiga. And finally, the Saiga gets only, what, 5 rounds? And in a box magazine, which, unlike a tube magazine, can't be easily topped off under fire.
Before you say that Saigas are too long for CQB, check out what Tromix (and some other gunsmiths that I can't remember right now) have done with them. You have to register it as a short barreled shotgun, but they'll put on a folding stock and whatever length barrel you want. I've seen some setups that look even more compact than your typical CQB setup pump shotgun. Plus, for the same overall length as a pump shotgun that can carry 5 rds, you can get a Saiga with a 10 round box magazine. I'm not saying Saigas are the be-all, end-all of the shotgun world, but they're not quite as worthless as you make them sound.