Robert Leider (George Mason University - Antonin Scalia Law School) has posted The Individual Right To Bear Arms For Common Defense on SSRN. Here is the abstract:
The fundamental Second Amendment debate has reached a stalemate. On the one side are those who believe that the Second Amendment secures an individual right to keep and bear arms for self-defense against crime. On the other are those who consider the right to bear arms to be a collective right to maintain a militia. But there is a third theory of the right to bear arms--a theory that was once generally agreed upon but has largely been forgotten: the right to bear arms is an individual right for common defense. This Article explains this theory and defends why it is sounder than either collective-right theories or the individual-right theories that have emerged in federal courts after Heller, which are focused exclusively on individual self-defense against crime.