Yeah, the same answer with a slight difference. If you have a chrome lined barrel, just shoot the gun and clean it when it gets dirty. No big deal. Don't overheat, which is unlikely with an AR15.
However, as far as the rest of the gun goes, try this old trick lost in the mists of time and space. First of all, lock up ALL of your ammo in some safe place. You don't want a discharge doing this.
After being very sure the gun is unloaded, place the muzzle on a carpeted floor and grab the pistol grip. Squeeze the trigger to dry fire the gun. You will not hurt it doing this, sooss don't worry.
Keeping the trigger down, quickly rack the action using the charging handle. After charging (empty gun please) release the trigger, then squeeze the trigger again and hold down.
Dry fire again and again. Do this about 100 times as fast as you can. Be sure to lube up everything real heavy first. You will smell a strange odor like hot metal being lapped, which is what you are doing.
After 100 cycles, pull the gun down and clean and relube. Now try just casual dry firing again. You WILL feel a distinct improvement in the action and trigger. You have just lapped in your gun.
However, it is optional for you to do this. You have a $high-end$ high quality AR15. We did this years ago building AR15s and rehabbing old M16s to give them new life. Enjoy. HB of CJ
