Sounds like a reasonable middle ground between American style ownership and banning public gun ownership. We could even ask the national service volunteers if they are willing to have their guns in a storage facility away from public. An army invasion may not be a viable option for most militaries, but it doesn't stop them from doing so, like Japan in WW2. Better to have the option of some of our populace being able to repel enemies on the homefront when our boys and girls in the military will be going to the enemy's front. We can even have the volunteers pay for the guns. I'm sure many a gun loving patriots will willingly fork out for the opportunity to own guns, even with limitations.