Through Disc 1 and so far it is great. For the folks without the logistics to get to an actual carbine course I think this DVD set offers an excellent surrogate instructor. It will never take the place of the hands-on you'll get at a first class training site but the fundamentals and skill sets they stress are great. A lot of the drills could be practiced right in your living room doing dry fire runs.
It is highly recommended and worth the $40. Disc 1 is basic skills, disc 2 is advanced skills and disc 3 is drills.
The XCR had representation so don't think it is only for Magpullian AR's.
