I found this quiz while doing some research on a completely different subject.
How Much Do You Know About the 2nd Amendment? A Quiz
I'll tell you I got 11 out of 15 on this quiz, mainly because I live close to Washington DC and several questions concern Supreme Court challenges to DC's restrictive gun laws. There was also 1 question where I debated between 2 questions, and picked the wrong answer. But for a relative newcomer to 2nd Amendment issues - I was pleased with my general knowledge.