I guess I'm the odd one out here - I just don't think you need to discuss every single thing with your wife. Gotta draw the line somewhere, and my line gets drawn at my personal protection. I'll do what I've got to do to protect myself. Wife doesn't need to know when I'm carrying. In fact, the less she knows about this the better off we both are.
You need to have some degree of autonomy in a marriage, if it's going to last you a lifetime. Somethings you just learn to keep to yourself. It's no business of my Wife's how I wipe my butt or carry a concealed handgun. Both are done in private.
Don't make it an issue. If you make it an issue, it'll be an issue.