I realize this is an old topic but for anyone else that might be looking for peep sights for the Henry , this was my solution. I wanted a small compact peep , I had read that the Williams WGRS 54 would not work . I'm a little hard-headed so I ordered one . The sight as it comes is too tight to go on the dovetail ...................... but 30 minutes with some needle files will get it to fit . You will not have to remove so much as to weaken the sight in any way . This is my hunting sight and I am very happy with it !!!!! Because of the way it adjust , it would be considerable trouble for anyone who switches ammo on a regular basis , or anyone who needs to regularly needs to adjust for different yardages .
so if anyone needs a compact peep sight that you sight in and forget ................... this might be for you