Technical data

TM 9-1005-319-23&P 0008
0008-10
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:
4
(Cont)
Quarterly
(Cont)
Upper Receiver and
Barrel Assembly
(Serviceability
Check) (Cont)
b. Check gas tube (15), forward
assist assembly (16), and rear
sight assembly (17) for damage.
b. Gas tube,
forward assist
assembly, or
rear sight
assembly is
damaged.
c. Push in on forward assist
assembly (16) several times to
check for slippage of the
forward assist pawl. SH - If
slippage occurs, refer to TM 9-
1005-319-10 for lubrication
instructions.
d. Rear sight spring should retain
rear sight assembly (17) in
either position with firmness
(M16A2 only).