This manual provides technical information, training techniques, and combat techniques of the M203 grenade launcher. Intended users include leaders and designated grenadiers, who will use this information to successfully integrate the M203 into their combat operations. This manual discusses gunnery training and train-the-trainer, and includes an appendix on the M79 40-mm grenade launcher.

The tactical positions shown in this manual were drawn to enhance the reader's understanding of related subject material and are not tactically correct.

Unless this publication states otherwise, masculine nouns and pronouns do not refer exclusively to men.

The proponent of this publication is the United States Army Infantry School. Send comments and recommendations on DA Form 2028 (Recommended Changes to Publications and Blank Forms) directly to Commandant, US Army Infantry School, ATTN: ATSH-INB-O, Fort Benning, GA 31905-5595.

DISTRIBUTION RESTRICTION: Approved for public release; distribution is unlimited.