Large and Small Brass Bead Front Sight Ubert 1873 / 1866, Rossi and Marlin .410
This is the recommended sight for the Ubert 1873 / 1866, unless you are trying to change the point of aim, the .510 will change the point of aim on the Ubert 1873 / 1866.
--
These sights slide in the standard 3/8" dove tail and lock into place with the allen wrench provided.
Kit includes the .410” Height x 3/8” Dovetail Sight. Interchangeable .130” Bead and .175” Bead and Allen Wrench: