Publication Title: 40-mm Grenade Launcher, M203
Publication/revision date: 13 FEB 2003
Field Manual: FM 3-22.31
Supersedes: FM 23-31, 20 SEP 1994
Distribution Restriction: Approved for public release, distribution unlimited (public domain manuals)
CONTENTS
PREFACE
CHAPTER 1. INTRODUCTION
1-1.
Training Strategy
1-2.
Combat Conditions
CHAPTER 2. OPERATION AND FUNCTION
2-1.
Operation
2-2.
Loading
2-3.
Unloading
2-4.
Cycle of Functioning
CHAPTER 3. DESCRIPTION AND MAINTENANCE
3-1.
Description
3-2.
Technical Data
3-3.
Components
3-4.
Ammunition
3-5.
Clearing Procedures
3-6.
General Disassembly
3-7.
Cleaning and Lubrication
3-8.
Inspection
3-9.
General Assembly
3-10.
Care and Handling
3-11.
Care and Handling Under NBC Conditions
3-12.
Decontamination
CHAPTER 4. PERFORMANCE PROBLEMS AND DESTRUCTION
4-1.
Malfunctions
4-2.
Stoppages
4-3.
Immediate Action
4-4.
Remedial Action
4-5.
Destruction Procedures
CHAPTER 5. MARKSMANSHIP TRAINING
Section I. Preliminary Marksmanship Training
5-1.
Four Fundamentals of Marksmanship
5-2.
Limited Visibility
5-3.
NBC Environment
5-4.
Fire Commands
5-5.
Dry-Fire Exercises
5-6.
Sensing and Adjustment of Fire
5-7.
Grenade Launcher Range Layout
5-8.
Description of Range and Targets
Section II. Basic Gunnery
5-9.
Zeroing the M203 Grenade Launcher
5-10.
Overall Qualification Standards
5-11.
Day Record Fire
5-12.
Day Record Fire Qualification Standards
5-13.
Mounting the AN/PVS-4 (Without the Rail System)
5-14.
Zeroing the AN/PVS-4 to the M203
5-15.
Night Record Fire
5-16.
Night Record Fire Qualification Standards
CHAPTER 6. COMBAT TECHNIQUES OF FIRE
Section I. Advanced Gunnery
6-1.
Characteristics of Fire
6-2.
Classes of Fire
6-3.
Range Estimation
6-4.
Predetermined Fires
6-5.
Types of Targets
6-6.
Decontamination
Section II. Fire Control
6-7.
Methods of Fire Control
6-8.
Fire Commands
Section III. Application of Fire
6-9.
Suppressive Fire
6-10.
Overwatch Fire
6-11.
Area and Point Fire
6-12.
Target Engagement
6-13.
Limited Visibility
6-14.
Overhead Fire
CHAPTER 7. TRAIN-THE-TRAINER PROGRAM
Section I. Organization
7-1.
Objectives
7-2.
Mission-Essential Task List
7-3.
Trainer Assessment
7-4.
Assistant Trainers and Cadre Coaches
7-5.
Command Benefits
7-6.
Program Phases
Section II. Training Tasks
7-7.
Phase I, Preliminary Marksmanship Instruction
7-8.
Phase II, Basic Gunnery
Section III. Trainers' Certification
7-9.
Training Base
7-10.
Certification Outline
APPENDIX A. 40-MM GRENADE LAUNCHER, M79
APPENDIX B. UNIT TRAINING PROGRAM
APPENDIX C. PROFICIENCY (PERFORMANCE) EXAMINATION
APPENDIX D. RANGE SAFETY
APPENDIX E. STANDARDS, STRATEGIES, AND REQUIREMENTS
GLOSSARY
REFERENCES
AUTHENTICATION
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