TM 9-1005-319-23&P 0016
0016-9
To avoid injury to eyes, use care when installing spring-loaded parts.
7. Install front sight post (1) by turning front sight post removal and installation tool (2) clockwise until
front sight post base is flush with or slightly below front sight frame.
8. AIR FORCE ONLY: Perform mechanical zero procedures as follows:
This procedure, when used in conjunction with rear sight mechanical zero
adjustment, will give an approximate battle sight zero to most M16A2 rifles. The
following steps can also be used before firing a new or newly assigned rifle. Use the
procedures to check rifles stored in preferred packaging during routine inspections.
This will help ensure soldiers armed with the rifles will have a better chance of
hitting an enemy if the rifles must be used before a live fire zero can be made.
Whenever possible, zeroing of the rifle should be accomplished using ball
ammunition on a 25 meter zeroing target using the "L" aperture.
1 v s 1 4 4
Figure 10. Measurement of Height of Front Sight Post.
a. Mark a piece of plastic card stock or rigid paper with lines from 1mm to 5mm in 1mm increments.
Set the card on front sight frame and check height of top of front sight post.
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