Supercub we have similar taste it seems. Mine is fairly new to me as well. I can't use buckhorns though and I didn't want to drill it for a lyman or Redfield so I'm playing with this Skinner barrel mounted peep and a Williams fire sight front. This is the first gun I've had to get a LOWER front sight when changing over to a peep.
I don't think those buckhorn sights are original to the 141. Mine is a flat top sight with step adjustment.
Also there should be two drilled holes at the rear of the receiver on the top on the "tang" location. These are for a Lyman R-14 tang/receiver sight. Might want to check that out as well.
