I'm a big fan of aperture sights and I've seen a couple of samples that have a set of "wings" on each side of the rear aperture to protect the peep similar to Ruger's GSR or a 1917 Enfield.
I have a Kimber Montana that would be a nice rifle with one of these on it. Does anyone know of a source to purchase one for installation? I'd prefer something one piece as opposed to something bolted to a scope base. This would be a dedicated iron sighted rifle.