NcSTAR TAR - Manual (Page 4)

A1 Front Sight Post Wrench
The A1 front sight post wrench has 5 pins, and is used to adjust the front
sight post up and down. To use, simply unfold the tool handle, and extend
the A1 front sight post wrench to its outer most position until you feel it lock
into place. Close the tool handle completely. You can now make
adjustments using the wrench. Follow all of the manufacturer’s instructions
for adjusting your particular rifle’s sights. Line up the 5 pins with the sight
post’s 5 holes. Carefully push down and rotate left or right to adjust sight
post for elevation.
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