Can anyone explain the discoloration on the slide of this National Match ? Hardening ? It appears to have a commercial Government Model slide with the last 4 of the frame numbers on it. It has most all the features of a 1960 National Match including the plastic trigger, except someone has added a non "US" marked Eliason rear sight instead of the tall rear fixed sight as the 1960 NM was released with. Is this a legit SA National Match pistol ?
Regards,
Mike
Regards,
Mike

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