My 1917 has a factory pre war style 4" non-ribbed, tapered, and shrouded barrel. Mushroom knob replaced with proper vintage shrouded extractor rod with ‘barrel’ style knob.
Made a half moon front sight blade replacement (milled and pinned into base). It’s a full 1/10” wide and slightly higher with the rear sight notch opened up to target sight notch width of .124”; my “gat” ‘with old eyes’ sights.
