M16 Maintenance Manual TM9-1005-319-23.pdf - CombatRifle.net

ARMY TM 9-1005-319-23&P
AIR FORCE TO 11W3-5-5-42
1 2-17. LOWER RECEIVER AND BUTTSTOCK ASSEMBLY (CONT).
c. INSPECTION I
1. Inspect buffer assembly (1, 2. 3, or 3 1) for cracks or
damage
RIFLE ONLY
a. Some old buffers (1) have a hole with pin installed
which protrudes equally on each side approximately
1/32 inch (O 08 cm)
b. Some buffers (2) have a hole In the housing but no
pin
c. New buffers (3) do not have a hole In buffer body or a
pin.
BOTH WEAPONS
2. If cracked or damaged, replace.
3. Check free length of action spring (4). The free length
FOR RIFLE ONLY must be between 11 3/4 inches
(29.85 cm) mini- mum and 13 1/2 inches (34 29 cm)
maximum, FOR CARBINE ONLY must be between
10 1’/16 inches (25,56 cm) minimum and 11 114
Inches (28.58 cm) maximum, If not, replace Do not
attempt to adjust the length by stretching the action
spring
4. Inspect lower receiver (5) (without further
disassembly) for legibility of serial number ARMY
ONLY: If the serial number is hard to read, evacuate
to direct support maintenance AIR FORCE ONLY: If
the serial number is hard to read, evacuate to depot
maintenance
2-60 Change 3