What he said.

---------- Post added at 09:06 AM ---------- Previous post was at 09:01 AM ----------

It looks like the block sight was cut off, then drilled and a roll pin inserted.

It would be an easy thing to adjust the height for someone who did not know or wanted the battle sight to be at a XXX yard zero that was different than the (400?) of the 1917.

Never saw one like it.

I have one sight that someone cut the battle peep into a V.