Kar 98a complete rear sight, German.
There are three types of German Kar 98a rear sights. The early type with screws to hold the sight leaf in place, a second type which use a pin to hold the sight leaf in place, and the type which requires no screw or pin to hold them in place (last type). It is not clear if the pin type was manufactured as such or was a later modification. See second photo for comparison.
The German and Polish sights are the exact same except for the German Imperial markings which these will have.
These are original used parts in Good condition.
Expect mild to heavy finish wear, scratches and dings, grease and grime.