Technical data

TM 9-1005-319-23&P 0008
0008-24
PMCS PROCEDURES - Continued
Table 1. Preventive Maintenance Checks and Services for
M16 Series Rifles and M4 Series Carbines - Continued.
Item
No.
Interval
Man-
Hour
Item To Be
Checked or
Serviced
Procedure
Equipment Not
Ready/Available
If:
6
(Cont)
Quarterly
(Cont)
Lower Receiver and
Buttstock Assembly
(Serviceability
Check) (Cont)
Carbine Only
i. Extend buttstock assembly (58).
Grasp lock release lever (59) in
area of retaining nut (60), pull
downward, and slide buttstock
assembly to rear to separate
buttstock assembly from lower
receiver extension (61).
j. Clean and lubricate takedown
pin (62). Lubricate takedown
pin detent (63) and spring (64)
by placing lubricant on detent
and exercising it with a small
screwdriver.
k. Clean buttstock assembly (58)
inside and out. Check lock
release lever (59) for free move-
ment. Check for cracks, dents,
and damage to buttstock
assembly.
k. Lock release
lever is cracked,
does not move
freely, or is
dented or
damaged
enough to
interfere with
functioning.
l. Hand check lower receiver
extension (61) for looseness and
corrosion. If loose, repair.
Clean and lubricate lower
receiver extension.
l. Lower receiver
extension is
loose.
m. Grasp lock release lever (59) in
area of retaining nut (60) and
pull to install buttstock
assembly (58) onto lower
receiver extension (61).