These original Sears will fit and function perfect in any Springfield 50-70 Trapdoors as well as early Model 1873 45-70 Springfields.
They will fit First Model 1873 Two Notch Tumblers and were used in Early Springfield Carbines, Rifles and Cadets. They will also fit and function great in Model 1866, 1868 & 1870, 50-70 Cal. Muskets & Rifles.
Use ORI-346 Model 1873 Two Notch Tumbler with this Sear.
If you are a shooter they are great to have as a spare.