40mm Grenade Launcher, M203

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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