Not sure the question? Standard Military issue micro 2-600M sights. Good for clone builds, great rear sight.
I'd like to try the 300M sometime, although I'm not sold on the plastic pop out aperture.
OLD Kacs had an A1 adjustment wheel. I'd REALLY like to find one of those.
I'm trying to see how much these normally are. These have 'USMC' marked on them, and none of them do online that I can find for sale.