I'm with Todd, mine's is on my off-hand front pocket and it's a SW342.
If you are a CCW holder I'd stick with a firearm and not worry about a non lethal device. If you do, expose yourself to it, know what it will do to YOU! There is hardly ever perfect conditions when spray is deployed and you more than likely will be affected by it in one way, shape or form. You need to know ahead of time what that stuff will do to you and know that you can function through it.