This task covers:
a. Removal of M203 Grenade Launcher From M16 Series Rifle and M203A1 Grenade Launcher From M4 Series Carbine b. Inspection/Repair c. Installation of M203 Grenade Launcher to M16 Series Rifle and M203A1 Grenade Launcher to M4 Series Carbine
Tools and Special Tools
(Army) Small Arms Repairman Tool Kit (item 5, app B) (MC) Small Arms Repairman Tool Kit (item 5, app B)
Rivet (8448697) (from TM 9-1005-249-23&P, TM 9-1005-319-23&P, or TM 05538C-23&P/2A (Marine Corps only) (Used to return grenade launcher to the M16 series configuration only.)
TM 9-1005-319-23&P or TM 05538C-23&P/2A (Marine Corps only)
Grenade launcher installed on M16 series rifle/M4 series carbine.
REMOVAL OF M203/M203A1 GRENADE LAUNCHER FROM M16 SERIES RIFLE/M4 SERIES CARBINE
Clear both weapons before disassembly and ensure bolt of the rifle/carbine is forward.
The M203 must be reinstalled on the same rifle from which it was removed. The M203A1 may be switched to a different carbine by direct support.
When mounting an M203A1 or M203A2 grenade launcher, ensure side sling swivel is mounted on the right side of the carbine. If not, remove side sling swivel (TM 9-1005-319-23&P, para 216, steps 5A thru 5C and reassemble, steps 4B thru 4D.
AIR FORCE ONLY: The grenade launcher should be installed on the same rifle from which it was removed. However, there may be situations where this may not be possible.
MARINE CORPS ONLY: Also see pages 3-4 thru 3-10.
2-11. 40MM GRENADE LAUNCHER M203/M203A1 W/E - MAINTENANCE INSTRUCTIONS (CONT).
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