2-1 Clean the Rifle

   
   

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   B5.  The locking lugs.
   B6.  Clean behind the bolt ring and under the lip of the extractor.
 C.  Clean the following rifle parts.
   C1.  Lugs in the barrel extension, bore, and chamber.
   C2.  Bolt carrier.
   C3.  Slide cam pin area.

Clean the carbon deposits and dirt
from the locking lugs.