I had a set of the Williams Sluggers on my 20 gauge Mossberg 500 and after one season four out of the eight tiny screws had broken. Two on the front and two on the back. They sent me a new set and after a few rounds one more has broken.
I have a TRUGLO Tru-Bead Turkey Sight on my 20 gauge 11-87 that is ROCK SOLID.
I have replaced the Williams w the TRUGLO Tru-Bead Turkey Sight.
Having my sights be off target is one thing I do not need to be worrying about.
I also find the TRUGLO Tru-Bead Turkey Sight easier to adjust the rear for windage & elevation when sighting in.
And it is soooo much easier to install then the Williams w those friggin’ tiny screws. PIA
Now that I have had both sights I cannot see why anybody would want them Williams.