the recoil of a ksg is ridiculous yeah 14 shot but you will be fighting each shot, when empty you still have to reload old tube style mags so one shell at a time hope they have a time out for you to reload when you need to, or you are back to combat loading one at a time.
no reason not to have magazine feed weapons in this day and age, like choosing a 6 shooter in a modern war yeah it works but you are at a big disadvantage and for a 1000 dollars?
needing sight for a shot gun your joking right? other than illuminated ghost rings for low light apps and optic is as useful as a gold necklace on a pig. better to spend that money on shells and time on the range that a tacticool piece of useless crap.
my two cents