Technical data

TM 9-1005-319-23&P 0011

0011-5

NOTE

Firing pin should touch the gage on minimum but should not touch on maximum.

1 v s 0 7 7

1 0

Figure 6. Firing Pin Protrusion Test.

7. Insert firing pin (1) through bolt assembly (4). Position firing pin protrusion gage (10) P/N 7799735 to

check for proper protrusion of firing pin (minimum 0.028 in. (0.07 cm) to maximum 0.036 in. (0.09 cm)).

Replace defective firing pin.

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Figure 7. Checking for Binding of Bolt Assembly.

8. Prior to reassembly, insert bolt assembly (4) into key and bolt carrier assembly (5) (do not insert bolt

cam pin) and exercise bolt assembly in and out of key and bolt carrier assembly. Check for binding.