Technical data

TM 9-1005-319-23&P 0005
0005-20
M16 SERIES RIFLE/M4 SERIES CARBINE - Continued
Table 1. Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
15. FIRES WITH SELECTOR LEVER ON SAFE OR WHEN TRIGGER IS RELEASED WITH
SELECTOR LEVER ON SEMI.
Step 1. Inspect for defective selector lever (14).
Replace selector lever (WP 0021).
Step 2. Inspect for worn or broken rear portion of trigger (23).
Replace trigger (WP 0021).
1 v s 0 2 9
M 1 6 A 3 a n d M 4 A 1
M 1 6 A 2 a n d M 4
1 4
2 3
1 4
2 3
Figure 27. Selector Lever and Trigger Inspection.
16. HAMMER PIN "WALKS".
Inspect hammer pin (47). Determine if it "walks" or works loose during firing or if hammer pin is
very easy to push out of receiver when hammer is installed.
Replace hammer assembly (WP 0021).
1 v s 0 3 0
4 7
Figure 28. Hammer Pin Inspection.