I've added Williams Fiber optic ghost rings to several hand guns... BTW my sights are designed for rifle use, so the aperture is a little smaller
IMO...those that say they are getting better accuracy, probably could shoot better if they practiced more with a good conventional sight...
... so, why did I put them on my guns ??? I find they are much faster on target, with "acceptable" accuracy for speed shooting, self defense, both against 2 legged or 4 legged vermin...
I would suspect the further the sights are apart, the better accuracy could be attained ( just like conventional sights ) but one of the guns I have them on, is my Ruger Alaskan ( snubbie ) in 454 Casull & am quite happy, & confident I could more easily under stress shoot minute of grizzly bear if needed
BTW... I use bright orange for a front sight rod, & the standard Williams green for the rear sight rods... I find it gives me good definition between front & rear, & the orange appears brighter for low light use...
My Alaskan...
