The Beretta Pico is a DAO design
A second recommendation to look at the Beretta Pico. While I still prefer a wheel gun as my primary carry I gotta admit that the little Pico is the flatest, skinniest wheel gun DA feeling pocket gun I've found. There will most likely be another gun on my hip but that Pico will certainly be in my pocket.
Complaints that I've heard about the Pico are that the slide is near impossible to rack on a full magazine. True but only a minor issue in reality. I just remember to lock the slide back before inserting the magazine or do my first charge on a less than full magazine. The slide locks back on empty so it is not an issue in the field.
The other complaint is that the Magazine release is different. Yup. But then I've learned to use button mag releases, heel mag releases, squeeze mag releases, Colt cylinder releases, Smith cylinder releases, Dan Wesson cylinder releases and at least three top break release designs.
The Pico comes with two magazines; one a flat base plate and the second an extended base plate.
I can get a full finger and a half on the grip with the flat base plate. It's more than enough for control but the extended base plate allows a full three fingers. But the extended base plate also really cuts down on conceal-ability and getting the gun out of my pocket in a hurry.
My solution was to take the Dremel and slightly shorten the extension.
And the result is a magazine that is still easy to conceal, easy to draw, allows two full fingers on the grip and is comfortable.
Note I also swapped frames on the pistol.
If what you are looking for is a pocket pistol that feels and behaves like a revolver, the Beretta Pico may be about as close as you can get; a true DA, no mag disconnect safety, double strike, 380acp.
And it comes with REAL sights.