This "new old stock" vintage Russian red dot sight recently showed up on E-Bay; the "Oldgen Compact". Has anyone ever heard of it? According to the seller it was produced between 1999 and 2001 and was used by Russian forces in the Second Chechen War. Comes with a detachable screw-on 2.5x magnifier as well:
https://www.ebay.ca/itm/174817600244?hash=item28b3f0e2f4:g:cL0AAOSwBtVg2HvJ
https://www.ebay.ca/itm/174817600244?hash=item28b3f0e2f4:g:cL0AAOSwBtVg2HvJ