Irons. It's a backup gun.

We haven't approved optics for the smaller guns yet because they're not many out there. Figured it was easier this way.

Most of us are carrying the 43x/43/42 as backup guns.

Have to agree with earlier poster re KISS, a stock S&W J frame revolver, wearing a jacket carried in a shoulder holster, warm dry weather carried in an ankle holster.

Back up guns are probably not as well maintained and should be kept simple. Also simple is good if you hand it off to a friend/spouse.

So I’m in the middle. Older eyes with a vision issue, irons are blurry. I added Meprolight Bullseye sight to my BUG (think P365 SAS). Even had the slide milled to get it as snag free as possible. Probably won’t use the sight, or the gun God willing, but nice to have.