I had a King converted 38/44, it only had the front and rear sights. My eyes require me to adjust the rear sight further to the right than normal, I ran out of adjustment and during disassembly of the rear sight found a coil spring. I did some adjustment with a different length screw and length adjustment of another coil spring and got the adjustment I needed. As I recall the spring was installed, then the blade, with the adjustment screw holding everything under tension.
These Super Kings are truly magnificent revolvers.