Technical data

TM 9-1005-319-23&P 0005

0005-8

M16 SERIES RIFLE/M4 SERIES CARBINE - Continued

Table 1. Troubleshooting Procedures - Continued.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

6. FAILURE TO UNLOCK.

Step 1. Inspect for burred locking lugs on bolt assembly (16).

Remove burrs.

Step 2. Inspect for burred lugs (17) on barrel extension.

Remove burrs.

1 v s 0 1 4

1 6

1 7

Figure 11. Locking Lugs Inspection.

Step 3. Check for short recoil.

See Malfunction 10.

7. FAILURE TO EXTRACT.

Step 1. Inspect for defective extractor pin (18), cartridge extractor (19), and/or extractor spring

assembly (7).

Replace extractor pin, cartridge extractor, and/or extractor spring assembly (WP 0012).

1 v s 0 1 5

1 8

1 9

Figure 12. Cartridge Extractor Inspection.