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AR Lubrication, My Experience.......

2.4K views 27 replies 16 participants last post by  I_brake_4_camels  
#1 ·
Now, take this post/thread for what its worth, one shooters experience. And I know there are members whose experience make my 25 years of AR experience look pale by comparison.
I ask only that if you criticize, do it constructively, and if you have experiences you'd like to share, please do.

-1- Dry- ACK, the dreaded "D" word. Yes, on a rare occasion I've run my issue weapon, and my personal AR sans lube. I experienced no function issues of any type, but I did only rarely. Upon inspection during cleaning, there was no adverse wear noted either. My best advice is run it dry at your own risk, and if you do, don't do it often.

-2-Wet- There are more options than I want to list on this one. I've used everything from Break Free CLP, to synthetic motor oil. I always went light to medium as far as how much I applied to the BCG and inside the upper. I've also seen BCGs drenched to the point that lubricant was dripping from the mag well and spit out the ejection port.
(I'm biased in this case because I grew up shooting the M1 Garand, and the first lesson I was taught by men that carried it in WWII and Korea was that oil is not a lubricant)

-3- Dry Lubricant- I bet you weren't expecting this one. There are a few manufacturers that tout their ARs as being coated with materials that increase lubricisity to ease cleaning and to function reliably DRY.
I tried out a heavy duty dry lubricant on an AR I owned years back, and it worked. I've also tried heavy duty spray silicone lubricant and it also worked.

-4- Grease- Another unexpected option I'll bet. I had never tried this until I got my first AR10. And ever owners manual I've ever read for the 10 directs you to use grease as the lubricant for the BCG.
To that point, I've been using high temperature/high pressure moly-graphite grease. And yes, my small bore ARs are also greased.
As yet, I've had no issues at all. The biggest caution/precaution is making sure don't put it in places it shouldn't be. Namely the bolt face and FRONT of the locking lugs on the bolt.

Anyway, I hope my experimentation has been helpful. Like said earlier, this is just my experience.
 
#2 ·
I watched a YT video where an old guy basically cleaned the whole thing with brake cleaner, used compressed air to blow dry it, proceeded to pour 10W-30 all over the BCG, and put it back together. The whole thing was dripping with oil.

I'm an AR rookie myself, but I'm pretty sure it wasn't designed to be maintained that way.

I use this lubrication guide from AR-15.com on mine:

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#3 ·
There is no such thing as over lubricating an AR, if you want lube all over you and the shooters next to you dunk your AR if a tube of oil and go for it. With that said, I keep a light coat of my favorite lube on my firearms.
 
#4 ·
The biggest problem I have is with having several firearms, keeping them all lubricated. Some more than others.
 
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#5 ·
Several years ago I received a very detailed lesson on "How to Lube your AR-15" from none other than Mr. Bill Wilson, of Wilson Combat firearms. Well, actually, I received a "how NOT to lube your AR-15" lesson from none other than Bill Wilson, of Wilson Combat firearms. And to make the story more interesting, I need to confess the AR-15s in question (there were two) belonged to Bill Wilson, and not me. My part in this saga came about because I foolishly volunteered to clean said AR-15's for Bill at the end of a Texas hog hunt. Frankly, I thought I did a pretty dang good job of cleaning those rifles, after which I liberally applied oil to every place that looked like it needed it and pretty much dunked the bolt carrier assembly in lube. Bill, it turns out, is a member of the minimalist school of AR-15 lubrication. After he stopped yelling at me for doing such a good job of liberally oiling his weapons, he showed me in great detail the ONLY places to apply lube to an AR-15; essentially where Larry 229's post says to put it. I still dunk my bolt carriers, but don't tell Bill. :)
 
#14 ·
I use Mobil 1or Royal Purple (whichever brand handy at the time) 5w30 as lube for all my firearms. I don’t mention it much anymore as someone had a meltdown years ago when I discussed this—probably at the height of Froglube craze. Never had an issue with synthetic oil lube. Other than the occasional motor oil mist if I overlube, they all run great in all environments. One thing I have noticed is that AR bolt doesn’t carbon foul as bad with synth oil
 
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#19 ·
I went to "Cherry Balmz" website.

Their information on lubrication was in depth with the use of a lot of historical "tipping points" where the effects of improper lubrication changed how the military did things.

They have some specific information on AR's that you might find extremely interesting.

I used their stuff on a .22LR handgun that was accurate to 1/2" at 50 yards. It had a lot of FTF & FTE's, about 2 or three every clip. I used their .22 specific grease and went 300 rounds without cleaning and without a failure. At ~ 350 rounds, failures started again.

Cleaned and re-lubed. Even though it was a grease, the recommendation for my .22 handguns was to spread it thin with a "Q" tip so there was just as sheen - no streaks or other accumulations of grease.

I use their stuff on my 1911's and have been very satisfied with the results.
 
#20 ·
I watched a YT video where an old guy basically cleaned the whole thing with brake cleaner, used compressed air to blow dry it, proceeded to pour 10W-30 all over the BCG, and put it back together. The whole thing was dripping with oil.

I'm an AR rookie myself, but I'm pretty sure it wasn't designed to be maintained that way.

I use this lubrication guide from AR-15.com on mine:

Image

Image

Image
great graphic..........but in the beginning I thought it was some LGBTQZ joke!
 
#21 ·
I have found that lubes that are not also cleaners work the best. Motor oil is a cleaner to an extent, but not really. Nothing wrong with regular oil either, as opposed to synthetic. I use a ATF mineral oil mix to clean, and a grease motor oil mix to lube.
 
#22 ·
I have been running my ARs using a lube I discovered back in the 70s in the Motorcycle shop.
Having cardboard boxes full of every new Wonder lube I could find at every Gun show. It finely came to me, that maybe a synthetic oil with PTFE might just be the ticket to my firearms needs as well.

I also use it for cleaning the bore on my .308 bolt/gas guns & have seen a big difference in less metal fouling & better groups. I think the PTFE works it's way into tiny pores preventing fouling from sticking to the metal.

https://www.triflowlubricants.com/product/tri-flow-superior-lubricant-drip-bottle/
 
#23 ·
Good information.

There is a company called Cherry Balmz that produces greases for guns and has a lot of historical information as to what lubes work and why with some specific emphasis on AR rifles.

Their lube for .22 rimfires ELIMINATED FTF's for my Marvel .22LR conversions on my 1911's. Failures went from 1 to 2 per magazine to 300 plus rounds before the failures popped up again. This was my most accurate .22LR, shooting 3/8" groups at 50 yards.

Their stuff for my 1911's is the best, just very expensive. I don't have to lubricate them as often, but since I field strip the guns to clean them, it doesn't make any difference - because I remove the lubricant when cleaning.

The fact that there is still lubricant in place says it all.
 
#27 ·
I have been using Royal Purple and Lucas gun oils for a while now. A good friend of both the OP and myself taught me how to apply oil with one of the old timey shaving brushes in his gunsmithing shop. Seems to apply just the right amount of oil. Seemed to work decent on the AR that is in my safe, works great on my bolt action rifles.
 
#28 ·