Oklahoma is generally a pretty gun-friendly state. Unless you want to carry openly.
It's not lawful there at the moment, but there are some legislative efforts pending to change that.
Different options are apparently under consideration, such as licensed open carry,
unlicensed open carry, and simply removing criminal penalties for "flashing" or
I'm a fan of constitutional carry, and to this day fail to understand why someone who
carries concealed should only be a wardrobe decision away from being criminally penalized.
Here is a link to a news story about this issue: