Understand step-by-step how the AR-15 and it's clones function including how the unique gas system works. Complete assembly and reassembly, lubrication, maintenance, feeding, trouble shooting, solutions and repairs are all explained and shown in eye-opening detail. Along with what critical spare parts are needed to keep on hand. Concludes with installation of a .22 LR conversion kit and a target shredding live fire full auto demonstration. Instructed by Robert Dunlap. (Course Does not cover Barrel Installation and Head Spacing. this is covered in Detail in Course #323 - Building the AR-15)