Educational Zone #49 - Cleaning & Lubricating an AR15 Rifle - Page 5
Also wipe down the bolt cam pin, cotter pin, and firing pin. To clean the barrel, please refer to this installment.
The only other requirement for this weapon is to clean the chamber and locking lug recesses. I do this with a chamber brush.
Then I spray solvent liberally into the area to wash out any crud, and scrub with a toothbrush.
Then flush out with more solvent.
I then blow it completely dry with compressed air until dry. Then patch the barrel and finish cleaning.