Brush dirt from trigger mechanism

2-1 Clean the Rifle

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   A4.  Brush the dirt from the trigger mechanism.
   A5.  Clean the buffer and inside lower receiver extension.
B.  Clean the bolt carraige group.
   B1.  The outer and inner bolt surfaces of the bolt carrier.
   B2.  Clean the carrier key.
   B3.  The firing pin recess and firing pin.

Brush dirt from the trigger
mechanism.