Hi Old Navy:
I'm not tying to cause any problems here, but quite a few people aren't/haven't been happy with the modern "Bodyguard" revolver by S&W. I would encourage you to do a bit of research on this particular piece. I am a owner and user of several of the older, original Bodyguard revolvers (Models 38-0, 638-1, and 649-0). None of them have the internal locks. I EDC the Model 38-0 and 638-1 with standard velocity ammo. Unless you have an aversion to the older S&W revolvers, I would suggest looking into them, or even the current issue of the Model 638:
Model 638 | Smith & Wesson
There's nothing wrong with either the Model 442 or it's stainless steel brother, the Model 642. Some have noted a finish problem with the Model 642 (the clear coat flakes off and the finish starts to go), so you might want to stick with the Model 442 if that is going to be an issue for you. If I had the money, I might consider a Model 442 Pro to go with my Model 642-1, but in all likely hood, I'd probably spend it on another (original) Bodyguard instead.
Good luck,
Dave