Most adjustable sights will require a higher front sight. MMC made a low-profile sight years ago that might work with a stock front. Millett makes an excellent rear sight, but I believe it, too, requires a taller front sight.
Try Brownell's or Midway, I'm pretty sure one will fill your need.
But most rear sights that don't stand up too high will require milling the slide.
P.S. I just browsed Millett, Bo-Mar, MMC and Williams, all require coresponding front sight blades.
Last edited by Bob Wright; 10-25-2006 at 12:12 PM.