Paul, I'm wondering about the commonality of thread pitch / spud diameter from Merit to the (at this time) mystery rear sight.

Man, there are a LOT of different patterns out there and IIRC the Pedersoli factory # is a real oddball.

GTC

Last edited by crossfireoops; 01/01/15.
Member, Clan of the Border Rats
-- “Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”- Mark Twain