1.Kar 98k’s rear sight should be a “V-notch” instead of a semicircular one.
2.Mosin M91/30’s rear sight should be a square-like notch.(like that of M1903)
3.Realistically,P38,P08,M1911 and G43 have bolt hold-open device.
you don’t even work the bolt with most of the semi autos.