That single set was a popular option,...IIRC all the same basic guts as the one fitted to the "Walls", but with a longer sear engagement nose.
....been driven completely around the bend repairing that minute "hook" in em',....more than once.
Q. Did Win. ever fit those "Close Coupled" sets to the lever guns ?

GTC

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