hey I'm from Michigan. Detroit area. A few thoughts. I am a certified executive protection agent. 99% of the time I carry concealed. Unless I am taking a principle to the hospital where it's illegal to CC. I would then, OC. anyhow, I would say if I was OC and someone tried to grab my firearm, I would have to fight tooth and nail. If they had a weapon trying to grab it, justified shoot. If they are not armed trying to take possession, not justified. If they gain possession, I would definitely go to my backup and it becomes a life in danger moment. Up until that point though, blunt force brotha. Think about what a jury would say. Maybe they would think, well he didn't have to open carry, even though it's a right, he put himself in that position. However, if subject gained possession, lethal force would be justified.