Upper Receiver Assembly Cont
location item action remarks
c. Rear sight windage screw (5)
d. Aperture sight 6), flat spring (7), and upper receiver (8)
screwdriver e. Spring pin (9)
Remove using flat-bladed screwdriver.
Remove.
End of disassembly for M16 rifle.
Remove using 3/32-inch drive M16A1 rifles only pin punch and hand hammer.
1/16 INCH PUNCH
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TM 9-1005-249-24&P
location
ítem action remarks f. Forward assist assembly (10), helical spring (11), and upper receiver (12)
Remove,
M16A1 rifles only.
Upper Receiver As^mbly a. Rear sight parts b. Rear sight spring
Check for serviceability. Replace if defective.
Check for serviceability. Replace if derective
Make a visual inspection. Look for broken springs, bent shaft or missing parts
c. Upper receiver d. Flat spring
Check for cracks, corrosion, and Same raquirements for M16 mutilation. rifles.
Repair or replace if defective.
Spring shall retain the sight firmly in either position.
Refer to page 3-27.
If sight is not firm, replace spring.
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