sights on a shottie.... well, back to basics. go grab a old model outta the closet, one with just a front metal bead. now sight it on something. now lift you head up away from the sight line and watch the bead ain relation to the target... notice the bead stays "on target" until your eyes are really far away from the sight line, even though you are not 'sighting'. Keep BOTH eyes open and get the big picture !!!! Yep, head up, elbow DOWN, eyes open, Swing~ point~ shoot & follow through. Shottie basics..... Practice in the garage with an unloaded gun, on a swinging tennis ball tied to a string hung from the ceiling . Sighting is a hard habit to break for some, but shotties dont require the old, " Close an eye, line up the sights" thing.
Thats why shotties never had true sights. Most came only with a front bead. No rear sight. Its not needed on wing or moving shots. hence the " Point and shoot" teaching of the pro's.
Sights were added when shotties started becoming refined higher priced still shot guns as in deer and turkey. Fiber optics and red dots followed close behind. They make a great looking add on where gun manufactures can add a few hundred to the price with little or no real expense on their part, like chrome hub caps on a car.
My 835 has the front and rear, adjustable fiber optic sights. Aside from looing good, they are pointless,
Because realisticaly, on wing shots, aside from low light assistance on target aquisition, sights are a pointless added feature on wing guns.
{ NOTE: Both eyes open give BI~nocluar Vision, an absolute MUST for moving targets and depth perception}