Very different
Trials rifle rear sights had circular cutouts for a ball detent for the raised and lowered positions
Std production No4 sights had flats that rested on the familiar spring loaded 'top hat'
Very different
Trials rifle rear sights had circular cutouts for a ball detent for the raised and lowered positions
Std production No4 sights had flats that rested on the familiar spring loaded 'top hat'