Is there a tang sight that would not require drilling my trusty old 1890. It is a takedown model (model 3 I think) in 22 WRF. I checked with Brownells and the ones they offer would require drilling and tapping new holes in the tang. I don't think I want to do that to this old rifle that is in such good condition. It is unusually accurate, but the old eyes won't let me take advantage of that. Thanks