Packing grease and lubricating grease are two different things.
Who cares what the manual says? I'm gonna go with experience. mine and others.
Grease the charging handle track, the carrier, the bolt (except the face) and the trigger mech.
Anyone who recommends oil, clp, ect hasn't fired 1500 rds in a day using fat mags.
Below is from getoffthex
Lubrication:
People tend to OVER lubricate their handguns and UNDER lubricate their rifles.
* NEVER put lube in a magazine or in a firing pin channel.
* ALWAYS lube handguns EXACTLY as the manufacturer recommends.
* ARs do NOT need to be “dripping” to run. In fact it could be harmful.
Oil is adequate (although we don’t recommend it) for the range but for offensive or defensive weapons we use and recommend a high temperature lithium based grease. We use grease on all of our weapons. You can buy the fancy ones in the syringe or just go to AutoZone and buy the tub of high temperature lithium wheel bearing grease at a much better value. We also recommend grease for weapons that go unused for long periods. Oil will drip off, dry up or soak in over time. A THIN coat of grease will be there indefinitely.
In our High Risk Civilian Contractor courses we abuse rifles, primarily ARs, with rigorous drills. Several times a day, each day of class, the students will do drills where they expend 6-8 mags quickly. As you know this gets the guns red hot. Each student shoots about 4k rifle rounds and 1k pistol rounds in this 5 day course. As a class they will expend on average from 50k-65k rounds. This amount of volume combined with the rapid paced drills that have the students shooting 200+ rounds in a single string of fire allow us to really see what works and what doesn’t. The students that turned their noses up at the wheel bearing grease on Monday are reaching for it on Tuesday. We have found NO lubricant, at any price, which meets or exceeds high temperature lithium wheel bearing grease for keeping Fighting Rifles in the fight.
There are no "magic" lubes. High temperature lithium wheel bearing grease and motor oil works as good as anything and is cheap. I have bad news for the guys that buy “special” gun lubes in little bottles and syringes – there are no special refineries for gun lubricants. There are no guys in white lab coats designing lubes just for guns. Every lube on the market has one thing in common – they weren’t designed for guns. If motor oil and wheel bearing grease will keep a car from detonating driving 80mph do you REALLY thing they won't lubricate your gun? I know it goes against most folk’s delicate sensibilities to put automotive lubricants on their guns because you can get a lifetime supply for $5 but trust me on this one. More than once my car's dipstick has become a field expedient lubrication point because no other lube was available. I know this all sounds barbaric and uncivilized but it does work…and I am uncivilized.
Three tests to see if your gun lubrication method works:
Test #1 - Lube your gun properly with your lubricant of choice. Take a training class where 750+ rounds are fired in the course of the day. If your gun needs to be relubricated before the training day your lubricant isn’t as good as the $5 a gallon high temperature lithium wheel bearing grease.
Test #2 - After the class concludes you should properly clean and lubricate your gun. Put it away or carry it for a month and then take it out and look at it. If it is dry because the lube leaked out or dried up you need a new lubricant. You can find the oil in the bottom of your holster and grease at AutoZone.
Test #3 - Look at your AR (assuming it is lubricated) right now and if it has oil on the outside around all of the pin holes you need a new lubricant. Yours is so thin it has seeped out and it not protecting your gun anymore. You can find the oil in the bottom of your safe or in your rifle case and grease at AutoZone.
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This is my bolt after a three day Pat Rogers Carbine class with NO cleaning and NO lubrication after the class began. It was about 1100 rounds (+/-). The $2.86 a tub high temp lithium wheel bearing grease from Wal-Mart worked like a charm...again. You can see it is pretty dirty but is still "wet" even with all of the rounds fired.
This is where your oil goes...it runs out of the gun: