The only problem with fiber-optic sights is that some of them aren't too rugged, though that is much less common than it used to be.
One really fiber-optic iron sight is the NECG express sights that have both a fiber-optics fron bead and also a fiber-optic dot in the middle of the rear express sight. Even in dim light it's really easy to be be able to aim with them: just put the front bead on top of the rear bead. I had D'Arcy Echols put s set of these on my .375 H&H and really like 'em.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
