The Lyman 57 SME is the peep sight I wanted to put on my rifle because of the target and hunting peeps you can get for it.



It mounts to the side of the rifle and when you want to use a scope, the top part comes off with the removal of a screw (so I was told). Brownells sell one

539-057-007
Model 57 SMET

which is made for the White muzzleloader. I thought this would make an excellent sighing system for the open sights...