2-1 Assemble the Rifle

   
   

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 11.  Push the charging handle and bolt carrier together.
 12.  Join the upper and lower receiver.
 13.  Engage the receiver pivot pin.
 14.  Close the upper and lower receiver groups.
 15.  Put the handguards in place.
 16.  Replace the sling.

Caution: Before closing the upper
receiver group the rifle must be on
safe.
Close the upper and lower receiver
groups, seating the takedown pin, and
ensuring the selector switch is on
safe.