here is the rear sight all prettied up. It was pretty ugly before...likely put together from parts. I could no longer stand seeing it on a pristine-like-factory-new-metal. I didn't strip the old bluing off. I lightly scuffed the sides, more so on the left where the graduations are, with 400 grit to get rid of the discoloration and spots with "frosting". Some light pitting was there, but when I rust blued that all went away. I lightly sanded the ladder face and windage graduations with 800 grit backed by a flat piece of metal (my barrel vise top). I rust blued the whole thing, then polished away the new bluing on the ladder and windage graduations and the. All the small parts and other areas were just de-greased and then rust blued. Lee Express #1 evened all the color out to a nice deep color that matches everything else. I left the pin holding the cross bar together. I will fire blue it after I'm done playing with the aperture. I have another aperture I want to toy with opening up and custom fit to my eyes in the end.
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