Tuning The Colt S.A. For Cowboy Action Shooting & Armorer's Course Learn how to tune your Colt Single Action to work fast and flawlessly. Course covers complete design, function, disassembly, reassembly, repair and tuning. Clearly see the inner workings with rare Colt Factory Cutaway S.A. Revolver. This detailed Armorer's Course provides information that is relevant to all makes of frontier style single action revolvers. 2 hours. Instructed by Robert Dunlap.