My NAA Mini-Revolver, .22WMR, 1 5/8" barrel, is my EDC gun, and has been for decades. I long ago wore out the silly little leather holster it came with (yeah, back then, you got a holster with the gun).
At a gun show I found a full flap single magazine belt pouch (pistol) for $5.00. My gun fits right in, and with the Velcro-flap closed, it's perfectly secure. It can't fall out, or get snagged in my pocket. When I'm out, I fold the flap behind the pouch and stick the whole contraption in my front pants pocket. The gun is easily accessed, but deep enough in the pouch to still be secure.
After a couple of years of use, my revolver's hammer began to snag a little on the corner stitching, so I took a pair of scissors and cut a notch about an inch long and a quarter of an inch wide into the edge of the pouch so the hammer of my gun would be unencumbered. I secured the edging with super glue. Perfect. Flapped, the holster is as secure as ever, unflapped, as accessible as ever. Five bucks. Game over. I win.