M16a1 Disassembly

Lower Receiver and

Extension

Subassembly a. Spring pin (1)

b. Trigger guard (2)

Remove using 1 /8-inch drive pin punch and hanu . mmmer.

Remove.

M16a1 DisassemblyM16a1 RifleM16a1 Disassembly

NOTE

Old type receiver extension requires removal of spring pin. If spring pin is installed, remove and discard Modify lower receiver extension prior to reassembly. See repair page 3-69.

c. Lower receiver extension (3)

d. Buffer retainer (4) and helical spring (5)

e. Lower receiver (6)

Remove using machinist's vise^ vise jaw caps, combination wrench, and socket wrench handle. Clamp lower receiver in vise and tighten on solid portion just tight enough to hold.

Remove.

NOTE

If wooden vise jaws are available, use in place of brass vise jaw caps.

As lower receiver extension is removed, catch buffer retainer and spring.

Serial number controlled.

M16a1 Naming The Parts

3-67

M16a1 Naming The Parts

1tOt0033

socket wrench handle

1tOt0033

machinists vise note: grip the solid portion of the lower receiver with wooden or brass vise jaws

TM 9-1005-249-24&P

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