Williams front? Who made the rear?

I have a Williams Firesight on the front of my M94 and a Foolproof on the back. I've heard others talk about the f/o being fragile, but I've not experienced it (yet). However, Williams does off fiber optic tubes as part of their repair kits, so it must be somewhat common.

Nice work on that rifle. Who installed the sights?

"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown