I installed a micro S-1 on a SBE III while standing at my tailgate. Took two tries to get the right insert combo is all. Shot one group, clicked it over and shot a second which was dead on. This is an amazingly easy red-dot to install and use on a shotgun. Has a 6MOA dot which is about perfect. Should make for a turkey and coyote killing machine. Only down-side is the $800 price tag but nothing Aimpoint makes is cheap. If you were thinking about a scope for a shotgun, this is your huckleberry. Wish I had a photo but I can't get them to work anymore.

You can usually fine a good used one with a mount,which might have to be sold or traded,for about $600. I think I would prefer the 2moa dot as I've used a 6 and it gets a bit large at any farther distance. To me the 2moa would be useful in a wider range of applications.