Looking for some helping in clearing up when the NM rear sight first came about. I have a NM marked rear sight base with LUX pinion, "W" marked windage knob,NM 520 rear aperture. Also rolling around in parts box have BME & LPR marked windage knobs both marked NM. No pic's still sorting out how to post can email if that would help.
Pfc out
Pfc out
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