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AR lube oil VS grease?

Discussion in 'Black Rifle Forum' started by M&P Shooter, Nov 7, 2011.

  1. M&P Shooter

    M&P Shooter Metal Member

    Jul 19, 2009
    Phila, PA
    I just oiled my new AR upper with CLP and made the bolt assembly wet(Not dripping) as instructed from other thread and every video I watched on Youtube but now the question............ I see half the people use oil and the other half use grease, what's better IYO?
    Last edited: Nov 7, 2011
  2. Markasaurus


    Dec 13, 2009
    If it slides, grease it. If it rotates, oil it. I'm sure a lot of people here have a lot more AR experience then me. But from everything i've seen, read, and heard, the best combination depends on just a couple things especially climate.

    If you could have only ONE lube for some reason, my choice would be Mobil 1, 5-30 (the car oil). Because it may be the best all-around lube for almost all conditions. Most importantly, it will work in very cold conditions where other lubes will freeze solid.

    In summer temperatures, a lot of people prefer this combination: use grease on: the bolt carrier slide rails (the points where they touch inside the receiver), the bolt tail area, and the cam pin. I also prefer a drop of CLP or mobil 1 on the bolt rings and the firing pin.
    Every moving part in the lower receiver gets a drop of clp or oil, with a dab of grease on the hammer face where it contacts the bolt.

    Also if you like, you can remove the buffer and spring and give it a light coat of grease - this sometimes helps eliminate that "BOINGGG" sound some AR's make when fired.

    As for what grease to use, almost everyone has their favorite high-speed, specialty gun grease they prefer and most of them do the job fine. But in above zero conditions automotive, moly-additive wheel bearing grease is perfectly fine. A can is like $4 and a life-time supply for an AR. Here's some more info and opinions,

  3. pag23


    Jul 28, 2008
    Eastern PA
    I pretty much agree with the above post of where to put grease. I use a little dabbing of TW25 grease for those guns that I don't shoot that often but in addition still lube them with MPro7 or Milcomm. My usual shooting guns just get a lube with oil... haven't got Slip 2000 yet but heard good things.

    It all depends on your usage/areas of wear. There are numerous posts you can search for which discuss this topic. I did and it helped me
  4. jing1117


    Oct 10, 2008
    Roseville, CA

    This is what I have been doing since I watched the video. I have never had any malfunctions or runny oil in my rifle since then. Usually I run my rifles up to 500 rounds on one outing and they still function perfect. I clean my rifles after each outing so I have not reached the thousand round count stated in the video - one of these days I will purposely try to just use one rifle for all my practice sessions and not clean it, just to see what is the failure point of the rifle using grease.
  5. Glockz0r

    Glockz0r 10mm is best mm

    Aug 27, 2002
    I use automotive high temp wheel bearing grease on my AR15 bolt carrier group and hammer while I put small amounts of CLP on trigger group parts that move. I like using grease as it stays put during application while the CLP I have is in an aerosol can (never again!). I slow fire the rifle (range rules) so I can't say one way or another what form of lube is the best overall.
  6. I've always been a fan of grease, something like militec, rig, wilson and more recently Slip2000. I hate coming back to one of my AR's in the safe and find the stock and charging handle with the oil running down. I oil when I shoot and store them pretty dry with a very light coating of oil and a dab of grease on the moving parts. That way they are protected, always ready to go and no oil running all over.

    Most of us aren't taking our guns to Iraq or any other real hostile environment. I figure the most I would need in any event would be a few shots at most. If I'm going to take a class or a long range day then I run it wet like everyone else.
  7. Cole125

    Cole125 Silver Member

    Apr 5, 2008
    Far West, USA
    Your over thinking this one. Cover the whole bolt carrier in CLP and ripe the excess and go break it in. Once broken it, just put CLP where you see wear marks.

    The more oil the easier it is the clean.
  8. WayaX

    WayaX Lifetime Member

    Feb 27, 2007
    I keep a light coating of graphite-free Moly grease on the bolt, bolt-carrier, cam pin, and firing pin. I also use a good coating (but not excessive) of gunzilla or slip2000 (whichever happens to be on hand). This combination has worked in 100 degrees and as low as 14 degrees (never shot below that). It is also the combination I'm now using on my AKs and M1A.
  9. matt_lowry123


    Nov 23, 2008
    owensboro KY
    I just use oil, but I only shoot up to 200 rounds or so at a time. I also clean it after I shoot it.
  10. Skadoosh

    Skadoosh Tap Rack Bang

    Nov 4, 2010
  11. DieselNut


    May 21, 2007
    Cincinnati, Ohio
    I've been using CLP on my latest AR. I haven't used grease on this one at all (spike's NiB BCG) just to see how it stands up to the claims. So far so good.
  12. crazymoose

    crazymoose Nonentity

    Feb 9, 2005
    Never used grease on an AR. Had great luck with CLP, FP-10, or even full-synth motor oil. If I wanted lube that stayed put, I'd go with the Frog lube that everyone seems to rave about, or a high-viscosity motor oil.

    My experience with grease on guns is that it attracts fouling and crud like a magnet, and AR's get dirty enough without the extra help. Good lubricants will hold particulate matter in suspension and aid in cleaning, whereas grease seems to turn into an abrasive paste when it gets dirty enough.
  13. What does your manual say to use? In my manual collection, CLP or LAW are mentioned in later years and in pre-CLP days, LSA is also mentioned. Grease is fine (and recommended BTW) for weapons like the M-14 and Garand but it's not referenced at all for an M-16.
  14. Decguns


    Dec 29, 2003
    Back in 'Nam they used motor oil to keep the M16s running smoothly during sustained full auto fire on gun trucks. Worked for me in Iraq & Afghanistan. CLP is sticky, gummy crap. Try some 5W20 synthetic motor oil. It's the only gun lube you'll ever need.
  15. monkeykevin


    Aug 7, 2007
    Covington, WA
    High Temp Ball Bearing Grease

    Why? Because my buddy told me too. He tell's me EVERYONE uses grease in the sandbox because it sticks and the hot temperature with sand eats oil away like no other. And on top of that Glock are like Honda Civic all over the world from what he tell's me. ^_^

    Who's the Buddy: XE (Black Water) Contractor

    He also "did" say since I'm a mall ninja it really doesn't matter which lube(Slip EWL) I use since my life and the climate here(Washington) is forgiving unlike the Ancient Lands of the Gods.
    Last edited: Nov 11, 2011
  16. In the one article Vagisil worked, it's not very tacti-cool though...
  17. M&P Shooter

    M&P Shooter Metal Member

    Jul 19, 2009
    Phila, PA
    You just made me think of the Nascar episode on South Park:rofl:
  18. STI


    Mar 4, 2003
    I am outdated, I have been using LSA for 30 yrs and never had a problem, it just works. Too old to change with 2 gallons of it still on hand.
  19. It boils down to anything works. Some things clean better, some things protect better and some things smell better. Just like a Glock I don't think AR's are that picky as long as you are running something.
  20. Jerry

    Jerry Staff Member Moderator Millennium Member

    Dec 21, 1998

    :thumbsup: That pretty much says it. Everyone has their preferences of oils, greases and where and when to use them. I solve that dilemma years ago. An old time shooter, 1911 competitor gave me a tip. 30-W motor oil and STP. Its slick as cat poop and it stays where you put it. I switched to Mobil 1, because that’s what I use in my vehicles and STP. I’ve used it everywhere on every gun I own for over 15 years including my AR. It works! With that said I’ve just started testing (for my own use) Frog Lube. I’m not saying it the grates thing since sliced bread just yet but so far I’m pretty amazed by it. :popcorn: