Technical data
TM 9-1005-319-23&P 0044
0044-2
MAINTENANCE ALLOCATION CHART (MAC) - Continued
Table 1. MAC for M16 Series Rifles and M4 Series Carbines - Continued.
(1) (2) (3) (4)
MAINTENANCE LEVEL
(5)
(6)
FIELD
SUSTAINMENT
TOOLS
GROUP
COMPONENT/
MAINTENANCE
CREW
SERVICE
FIELD
BELOW
DEPOT
DEPOT
AND
EQUIPMENT
REMARKS
NUMBER ASSEMBLY FUNCTION C O F H D REF CODE CODE
04 Upper Receiver
and Barrel
Assembly
Inspect
Test
Service
Remove/Install
Replace
Repair
0.1
0.2
0.1
0.2
0.2
0.1
0.5
0.5
2
1
1, 2
1, 2, 3
A, B
0401 M16A2/M16A3/
M16A4 Barrel
Assembly and M4/
M4A1 Replace-
ment Barrel and
Front Sight
Assembly
Inspect
Replace
Repair
0.1
0.1
0.1
0.3
1, 2
3
0402 Upper Handguard
Assembly
(M16A3/M16A4)
Inspect
Service
Remove/Install
Replace
Repair
0.1
0.1
0.1
0.1
0.1
0.2
3
0403 Barrel Stop
Assembly
(M16A3/M16A4)
Inspect
Remove/Install
Replace
Repair
0.1
0.1
0.1
0.1
3
0404 Upper Handguard
Assembly
(M4/M4A1)
Inspect
Service
Remove/Install
Replace
Repair
0.1
0.1
0.1
0.1
0.1
0.2
3
0405 Upper Receiver
Assembly
Inspect
Replace
Repair
0.1
0.5
0.3
1, 2
1, 3
040501 Forward Assist
Assembly
Inspect
Replace
Repair
0.1
0.1
0.1
1, 3
040502 Rear Sight
Assembly
(M16A2)
Inspect
Replace
Repair
0.1
0.3
0.2
1, 3
1, 3
05 Lower Receiver
and Buttstock
Assembly
Inspect
Test
Service
Repair
0.1
0.2
0.1
0.1
0.2
0.3
2
1, 2, 3
C, D, E










