If it's like the '94c, it should be able to mount the XS easily. I installed my friend's (He was having some troubles with his glasses and didn't want to scratch the rifle with the screwdriver; funny since I have myopia but wear contacts, so it was like a mole leading a bat) and didn't take me more than 5 minutes and a set of small gunsmith screwdrivers (Get a small sealed box to store the removed factory bolts).
As far as I recall, drift was adjusted by moving the rear sight ring's dovetailed base, but height needed something else and it's not quickly adjusted like the factory leaf. My friend set it to hit 6:00 @ 60 yards and p.o.i. @ 110 with his .357 cast reloads.