
M320 & M203 SERIES
ARMORER // OPERATOR
MAINTENANCE COURSE

COURSE DATES
1 Day Course - 2025
MARCH
6th
Henderson, NV
SEPTEMBER
13th
Henderson, NV
JUNE
7th
Henderson, NV
DECEMBER
13th
Henderson, NV

COURSE AGENDA

• Introduction of the instructor(s) and class participants and description of contents of the course
• Safety discussion, proper safety procedures
• History of the M16/M4/AR15 systems
• Loading and unloading procedures
• Clearing the weapon and making it safe
• Technical discussion covering function and material
• Complete DS/GS level disassembly of the weapon
• Gun parts identification
• Ammunition available for the system ID
• Complete reassembly of the weapon
• Complete instruction for DS/GS level gaging
• Function checks
• Description of the operating components of the weapon
• Range drills

COURSE SUBJECTS

INCLUDED COURSE TOPICS:
Safe and proper weapons handling procedures
General data and nomenclature for all included weapons
Design fundamentals
Unloading and clearing
General and detailed disassembly of weapons
ARMORER-LEVEL DISASSEMBLY
- Component analysis & inspection procedures
- Field stripping & reassembly
- Detail disassembly
- Repair parts & specialty tools
- Special maintenance requirements
- Assembly & function checks
WEAPON SPECS & DIAGNOSTICS
- Options / alternate parts
- Model variations
- Maintenance and inspection of weapon components
- Identification and replacement of worn or broken parts
- Care, cleaning and lubrication
- Field maintenance
- Cycle of operation
- Malfunctions and troubleshooting, including immediate and remedial actions
