Madashell I don't have any experience wth the Wilson grs but have used the Williams Reciever (peep) sights on quite a few of the 760's , 7600's and my Savage 99 and quite like them. In fact I picked up a rough 760 in .308 today that will be a project and will likely wind up with the Williams WGRS peep sight unless I go with the see through mounts it came with. Nothing wrong with the plastic dust guard as far as I know. I've not had one rattle on my guns. Don't know where you are located but if you are near the east end of the gta and want to have a look at mine before you buy just send me pm and we can set it up. Cheers Bac4