George: Unfortunately, it is just the opposite. The dovetail is too deep and too wide for the current crop of adjustable sights. There is a possibility that if somebody dug deeply into the bottom drawer and came up with an old Micro with a half-inch dovetail, it could be made to work.
What I've considered on mine is to make a dovetail blank to fill the slot and go ahead and mount a S&W adjustable rear, disregarding looks in favor of utility.
The downside of the 945 is peculiar. Most shooters cry about sloppy fits. The Taurus is too tight. After about 30 rounds, mine becomes sluggish and prone to malfunctions. I don't think that it is ever going to be in the top three of popularity (with me, at any rate.)