I am not familiar with the gun laws to such an extent, to be honest. It is my understanding that the only thing you can legally carry concealed is a pistol that you have a permit for, which grants concealed carry specifically for that pistol. All other firearms have to be either open carry, or put away separately from ammunition out of your reach during transport. I have never heard anyone say it was legal to carry a concealed shotgun or rifle, and frankly I wouldn’t try it either.