40mm Grenade Launcher M203 and MK 19 40mm Grenade Machine Gun Author:Department of Defense A great value! Two military manuals combine into one book. If you purchase both books separate you will pay more for the books plus shipping cost. 40-mm Grenade Launcher M203: This publication provides technical information on and training and combat techniques for the M203 grenade launcher. Intended users include leaders and designated grenad... more »iers, who will use this information to successfully integrate the M203 into their combat operations. This manual discusses gunnery training and train-the-trainer, and it includes an appendix on the 40-mm grenade launcher, M79. MK 19, 40-mm Grenade Machine Gun: This manual discusses how to train the unit to use the MK 19, 40-mm grenade machine gun, model (MOD) 3, referred to in this manual as the MK 19. This manual highlights mechanical training, weapon capabilities, and gunnery principles, methods, techniques, and standards that apply to the MOD 3. It also includes preliminary gunnery, a gunnery skills test, gunnery tables, and qualification tables.« less