Technical data

TM 9-1005-319-23&P 0024

0024-2

REPAIR OR REPLACEMENT

1. Inspect trigger spring for kinks, deformities, and weakness. Replace if defective.

2. Inspect disconnector springs for deformities, bends, breaks, and weakness. Replace if defective.

3. Inspect trigger for chips, wear, and cracks. Inspect for damaged searing surface on the trigger nose.

Replace if defective.

END OF TASK

ASSEMBLY

M16A2, M16A4, and M4 ONLY

1 v s 2 0 5

Figure 2. Installation of Disconnector Springs (M16A2/M16A4/M4).

NOTE

Use bolt carrier key tool (WP 0039, Figure 23, item 12) to install disconnector

springs.

M4 CARBINE ONLY: The semi and burst disconnector springs are not the same.

The semi disconnector spring (left side) is black while the burst disconnector spring

(right side) is nickel (shiny). Ensure that the correct spring is installed on each side

for proper functioning.

1. Use the following procedure to install two disconnector springs (1) using the bolt carrier key tool:

a. Secure trigger (2) in soft vise jaws or similar device.