Eotech brought these out for 870s and Mossbergs sometime this summer, I think. I've seen one on a Mossberg and it looked pretty good in the store: three switches, constant on, press on, and strobe, very compact and streamlined as compared to, say, the Surefire version, and a fair bit cheaper. To my mind a shotgun light should be mounted on the pump and I'm very minded to get one of these- however haven't met an owner yet. Has anyone used this Eotech? I mean out in the world, in the dark?