From the rare single shot pistol manufactured at the turn of the century, to the exposed hammer H.D. From the Military to latest competition grade models made by the New Hi-Standard Manufacturing Company of Houston Texas, this AGI Armorer's Course covers them all in comprehensive detail. A fascinating look at one of the most successful 22LR Target pistols ever made, the Hi-Standard has a very interesting history, much of which is documented by AGI for the very first time. Other subjects covered include how to determine which method you must use to disassemble a particular model. Using the wrong method can result in permanent damage to the pistol! Also basic function and repair is covered along with trigger and safety adjustments.