The link below is from the PAFOA but the content of the separate lectures is based on the Constitution. I will be viewing as time permits. I know I am woefully ignorant when it comes to our Constitution, Founding Fathers........ Guess it is about time I/we took the time to educate ourselves.
I do not know if these lectures are any good but I will watch to see.
Michael Badnarick did a 7 part online Constitution class. He covers A LOT of issues, and why a lot of things in America today are unconstitutional.
And yes guns are covered a few times. He covers a lot of stuff about search and seizure, right to remain silent, property rights, how a Republic works as opposed to a Democracy, the IRS and Federal reserve... he covers just about everything in a way thats easy to digest. Enjoy... Also watch it in order, its a 7 hour lecture split up into 1 hour blocks. Each block builds on the next.