It is a rifleman training seminar, either one or two days. I've been several times, and always leave a little better of a shot than I arrived.
It also teaches the history of the battle of Lexington and Concord, without being too over the top, just the facts. On the humorous side, it is partnered with the Revolutionary War Veterans Association, and says so on the T-shirt....which leads go odd questions from young sirmen at the base gym, lol.
It is also free to military, vets, women and children.
You'll have a blast!