Specifications

TM 05539-IN

BOLT BODY ASSEMBLY - CONTINUED 0023 00

0023 00-3/(0023 00-4 Blank)

HEADSPACE

WARNING

The firing pin is under spring tension. Release it slowly to prevent injury to personnel.

NOTE

• The M40A3/A5 has a 10,000 round life expectancy and is to be auto-retrograded to the Weapons Train-

ing Battalion in Quantico, VA.

• Shipping procedures are outlined in WP 0021 00.

1. Clean chamber, bolt lugs, and bolt face thoroughly before checking headspace.

NOTE

The extractor does not have to be removed.

2. Disassemble the bolt body assembly and remove the ejector and ejector spring.

3. Pull bolt body assembly (1) to the rear, insert the “Go” headspace gage (7) (1.630) inside the chamber (8), and close the

bolt onto the headspace gage. Bolt handle (6) should close completely with no resistance.

4. Pull bolt body assembly (1) to the rear, insert the “No-Go” headspace gage (7) (1.638) inside the chamber (8), and close

the bolt onto the headspace gage. Bolt handle (6) should not close completely or should have slight resistance. If weapon

does not meet headspace criteria, request WIR disposition from Material Manager, Albany, GA.

5. Reassemble the ejector spring, ejector, and ejector retaining pin in the bolt body assembly.

6. Reinstall bolt assembly. Refer to WP 0012 00.

7. When the weapon is completely reassembled, perform the functional check procedures outlined in Function Check

(WP 0020 00).

END OF WORK PACKAGE

M40-048