I recommend and carry the Smith and Wesson 642 Airweight 38 cal. There are a bunch of reasons why. Revolver over pistol for malfunction reasons, easy to shoot (3 p’s point, pull, pray). The 642 because it’s light, concealable, no hammer to hang up on pockets be it a vest pocket pant pocket, chest pack on the draw and I don’t have to brandish it or draw it to shoot, meaning I don’t have to pull it out of my pocket to shoot it and can shoot again from the pocket with out malfunction. I like the 38 cal because it is a very reliable round and use Federal Premium 38 special High Velocity (+p) and it is a hydra- shok bullet and if I miss and its has been a while, it is a very loud round and could likely scare the attach to stop and feel or give me more time to point, pull, and pray.