I would go with a 4 inch Model 19, frame is shootable and saves a bit of weight.

As to barrel length, I carried a Ruger Service 6 with a 4 inch barrel for years, and thought I needed something more concealable and bought a 2.5 inch Colt King Cobra. I found the 1.5 less barrel did almost nothing for concealment, but made it less shootable.

I have no experience shooting a 3 inch barrel revolver so can't speak on it, although a 3 inch model 19 is intriguing.


"Put none but Americans on guard tonight."
-George Washington