They do look kinda funny without a front sight but since I can't see the darn things I decided not to bother with putting one on my F. I learned at about age 14 that a low power scope worked better than iron sights in low light anyway.
I think there are two sighting arrangements that really make the 99 shine. One is a receiver sight and the other is a low mounted low power scope. And I’m not sure which is best???