I think there's at least a plausible argument to be had. A lot of bad guys get guns through holes in gun control, getting a gun out of state, etc. If it were harder for the wrong people to get guns, maybe there wouldn't be such a need for a militarized police force, or at least officers might not fear for their lives during stressful situations.

That said, I'm a believer in the second amendment -- I just think there's definitely an argument to be had.