King - all of my lever guns use the bullseye rear sight from Marbles. It's a great fast sight and does not obscure the target field. In fact a couple of hunting rifles have front sights that are the green luminous type. They really stand out at dawn and dusk. Although, for basic target shooting using a 6 o'clock, hold I spray it with sight black. You will not be dissapointed using the marbles bullseye sight. Just let is blur and center the front sight in the blur!