The 91's rear sight is soft soldered on. It's been a LOONG time since I reworked mine but I think it also has small screw in the sight base that had to be removed before it could be slide off. And yes, the whole thing had to be reblued afterwards.
I cut my (still excellant) barrel to 22", installed a set of Rem 700 sights, front and rear.
Got lots of those laying around, thats a good idea.
Thanks
Ryan
