Three-inch M10
I had wanted a M10 with a 3" barrel for some time. Walked into a LGS on a whim a couple years ago, and there were three in the handgun case. One had lots of wobble and endshake, one had a bright plum-colored cylinder, and one . . . was near perfect. All three were square-butt frames, and all three had tapered barrels. The near-perfect (by my lights) has a place of honor in the old gun cabinet. It shows some finish wear, but is mechanically really good. I swapped the narrow factory trigger for the smooth, wider "combat" trigger, and with a tiny bit of stoning and a standard Wolfe hammer spring and reduced-power rebound spring, it's a mighty good double-action shooter.