TOTW has some aperture sights that are copied fromn the 1860's and on, the Lyman GPR 57 is made for that gun but lacks and connection with any peeps that may have been used on such a gun, the Lyman Tang sight is patterned after a 1878 type as are most of the Rifle smith sights by Axtell Rifle company, you may have to look elsewhere or get creative and make an aperture sight that wsould fit in the time frame of the LGP, most just use the modern type and figure a peep is a peep...you will have to decide where to set your standards for authenticity. Vendors are generaly a poor choice of un-biased factual info on early aperture sights used on ML's, it is an individual choice as to whether one uses modern sights and connical bullets that are out of sinc with their trdaitional styled ML, good luck, some folks make them and maybe they will chime in here shortly.
