I can't speak at all to their quality, but there's the Diamond Sidekick line of revolvers with swing-out cylinders. They're DA/SA, but have the look & feel of the old SA revolvers (and can, of course, be fired SA to further recreate the feel
).
Click to read tech specs of the first revolver from Diamondback Firearms! Made in the US, the Sidekick combines the cowboy look with modern features!
diamondbackfirearms.com