Star child... Re: @AC ... The cat is pretty well out of the bag already
AR-15s do not make a good home defense gun.
(Well maybe if they're in 300BLK or if they're a carbine in 9mm or .40)
Castle Doctrine exists in most states explicitly and at the same time... the lack of her being able to retreat is enough to warrant lethal force.
Open carry on your private property is legal. In rural SC I open carried walking down the road and waved to the local sheriff. (I was walking along the fence line to a gate 1/2 mile down the road to where I needed to be.) No hassle.
Again, the moral of the story, don't bring a knife to a gun fight... unless you're a highly trained assassin.