NcSTAR TAR - Manual (Page 10)

BOLT ASSEMBLY PIN PUNCH
The bolt assembly punch can be used to remove various pins on your rifle
such as the extractor pin. To use, extend the smaller punch until it locks into
place. Close the handle completely. Be sure to securely hold the bolt in
place and also be certain that the pin will not be damaged as it protrudes
from the other end. Line the punch up with the pin and carefully push it out.
Once the pin starts to protrude from the other side you can then pull it out.
Always make sure that the punch properly fits the pin that you are using it
on as not to damage the pin, bolt assembly pin hole, or the tool itself.
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