field manual Organizations and operations in the corps, army, theater of operations and GHQ / Prepared under direction of the chief signal officer field manual U.S. rifle, caliber.30,M I / Prepared under direction of the chief of infantry field manual Revolver, colt, caliber. 45, M 1917, and revolver, Smith and Wesson, caliber. 45, M 1917 / Prepared under direction of the chief of cavalry field manual Submachine gun, caliber. 45, M 3 field manual Horse cavalry / Prepared under direction of the chief of cavalry field manual Employment of cavalry / prepared under direction of the chief of cavalry field manual Antiaircraft artillery : markmanship and service of the piece : antiaircraft machine gun / prepared under direction of the chief of coast artillery field manual Combat practice firing armored force units field manual Mechanized elements / Prepared under direction of the chief of cavalry field manual Signal organizations and operations in the armored division and armored corps / prepared under the direction of the chief signal officer field manual Tactical employment tank destroyer unit field manual Supply, evacuation and trains, armored units ( FM 17-50 )