I really think gun licenses should have a similar process to driver's licenses. When I got my driver's license, I had to do 32 hours of classroom teaching, then 8 hours of student driving, and then pass a written and practical test. A gun license should be the same, or more stringent, and also require renewal through an office like the DMV every few years. And if the licensing instructor doesn't think you'll be a safe gun owner at the end of the test, then no license for you, go back to class and you can take the test again in 6 months.

I think this would be a lot more effective gun control than all the piecemeal regulations about various types or technical features of guns.