Gear, Parts and Accessories

AR-15 Maintenance: Never Run Your AR Dry Again Thanks to a New Type of Lubricant

Birchwood Casey firearm lubricant pen

The MLP Solid Film Lubricant Pen from Birchwood Casey Keeps Firearms Running During the Toughest Conditions

The AR-15, America’s rifle, Black Gun, call it what you want, but it is a ton of fun to shoot, hard to beat for hunting and a staple for self-defense. The AR-15 also has its share of moving parts that can be problematic if not cleaned or lubed properly. I cringe on the range when I hear a new shooter declare he has bought a new AR and thinks it is a POS gun. Normally, all it takes is a quick lesson in cleaning and maintenance to get the gun running like a well-oiled machine. In fact, the majority of the time that is the problem—shooters trying to run a dry gun.

Gunsmiths charge hundreds of dollars to coat high-wear parts with long-lasting lubricants. The performance difference is certainly worth the price. However, what if you could get the performance advantage for a fraction of the price? And by a fraction, I mean lees than the price of a movie ticket. Birchwood Casey’s MLP Solid Lubricant Pen meets Mil-Spec requirements and provides a low-friction lubricant coating for enhanced performance under extreme or casual conditions.

MLP Solid Film Lubricant is a semi-permanent, lacquer-like coating containing molybdenum disulfide and corrosion inhibiting pigments. The formula creates a tough, low-friction coating that prevents corrosion, galling, seizing and fretting.




Once applied, MLP Solid Film Lubricant is virtually unaffected by atmospheric and fretting corrosion, solvents, acids, oils and degreasers. MLP Solid Film Lubricant operates best at temperatures ranging from -320° to +300° degrees F so unless you are headed to deep space or the sun, you are in the sweet spot.

How will you use the MLP Solid Film Pen? Share your thoughts or experiences in the comment section.

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Comments (23)

  1. I must be missing something in the Translation Matrix. The Dry Lubricant is Temperature Rated from -320F to +300F. What happen’s when the Temperature exceed’ +500F, which it will after 10 or 20-rounds go through the Barrel. Where’s the Lubricating Protection then…

  2. Birchwood Casey has long been the leader in supplies for gun owners and shooters. These are the only products that I have ever used, and now they done it again with this solid lubricant.

    1. @Roy

      If I’ve got my Roy Holberts right, you are a highly experienced CP operator who I used to agree with a lot on Linked-In (most of the time) when dealing with the youngsters who think they know it all.

      In short, you’re a lot like me . . . a crusty old bastard whose been there and done that, and doesn’t need to impress anyone. 😉

      I quit doing Linked-In and any other social networking because the wrong people were . . . keeping track of me there. Now I just stick to a couple of gun blogs where I can satisfy my need to talk to like minded people.

      Hope you’re doing well, and if i have the wrong guy . . my apologies.

    2. @Mikial:

      Interesting you bring up LinkedIn. I find it to be extremely invasive. Did you ever get anything good out of it? Anything really bad? I’m just wondering because you usually have great takes on things, and sometimes I wonder if I should ever use it in my career, although I’m strongly leaning against it.

    3. Roy,

      To be completely honest, the only things I ever got out of it were someone trying to get me to contribute money to a business he was trying to start, and my ex-wife stalking me on it.

      Considering the work that I do, and the domestic issues, I don’t do any social/professional networking anymore. I never got a darn thing out of it.

      But I was glad to see you on this blog at least. There aren’t that many genuine people out there, and agree or disagree, I respect genuine people.

    4. @Mikial:

      LOL it was me asking the question, not Roy. But either way you gave a good answer, like about your ex-wife stalking you.

      I don’t think I’m going to create one. I created a fake one so I could communicate with a long lost relative. I even had a fake name. But then LinkedIn starts asking me if I want to connect with people I actually really knew from multiple facets of my life. That was scary. How did they know that?

      I’m in software development. Hey maybe if I’m a consultant and I need to do wide ranging professional networking, then maybe it might help me earn more money. But I’m not a consultant. I’m a W2 employee and if I ever need to find another job, I’d rather pick and choose who I want to send my Resume to, instead of have my whole life and personal information out there for anyone to see for any purpose whatsoever.

    5. oh, sorry, ss1!

      I guess I need to stop answering comments with my eyes closed. 😉

      But, yeah, there is no real privacy anymore if you’re on-line anywhere at all. Sites like Linked-In and Facebook use your email information and cross check it with your IP address and location which is embedded in every email or comment you send out. That way they can narrow down who you are to an amazingly accurate detail.

      To me it’s just not worth it, and I don’t really need the networking.

  3. I once shot a spring out while working on an old Hi Point .380. I searched for a couple of days, then called the factory and told them what happened. Being Hi Point, and having the best warranty in the business, they said no problem and sent a replacement right out.

    It arrived in a couple of days and I reassembled the gun, walked out into the hall, found the original spring right there in the carpet. :/

  4. Sounds like a good product. Not a big fan of shooting at people with a .22, even a hot one. But, am devoted to my old 30-06’s and a few a few 308’s. But, love my 1911’s and have more of them than anything. Why wouldn’t that product work on the slide rails on the 1911?
    I have been using LAS lent to me in about 1965 by our squadron armorer who serviced the 20MM wing guns on the A-4 Skyhawk. He told me LAS was engineered to survive extreme temperatures and the corrosive environment at sea, so it should be excellent for rifles and pistols. Haven’t used any other grease for about 50 years. But, it is a bit messy and it can attract dust. This product might be an improvement.

  5. This stuff has actually been around for a number of years and I use it religiously, particularly on my carry guns because dry lubricant does not collect dust & lint the way oil or grease does. I clean with 99.9% alcohol and then lubricate with Smooth-Kote or Tuf-Glide from Sentry Solutions. It is truly amazing how easy cleaning even the dirtiest shooting .22 can be after you’ve applied this stuff. Brush out the lead & copper, lightly touch up high friction areas, done. In tight areas like trigger groups on various firearms, I shake in a little of this company’s BP-2000 powder. You’ll feel the difference. Lastly, I take their Tuf-Cloth to the range with me every trip, just in case. I linked a website with this post if anyone wants to check out their products. Their FAQ and blog page answer a lot of questions too.

    Disclaimer: I have no association whatsoever with Sentry Solutions aside from being a loyal customer who believes in their products. They are a USDoD contractor as well.

  6. I clean my Anderson AM15-M4 with soap and water, I never use solvent or lube.
    The Anderson Rifle is the only rifle in the world that never requires lubrication.

    1. @FredNeck.

      I looked these up. Very interesting. I would assume if other manufacturers could figure out what they’re doing and get past the patent, anyone could offer this.

  7. This seems like a PITA. “must let sit for 6 hours at 70 deg with 50% humidity”. I have had ARs for years. I used to use gun scrubbers, bore cleaners, CLP or frog lube etc. its all a waste. My neighbor is a Sheriff dep. and he shared with me his secret, WD-40 to clean the gun, hoppies #7 for the bore lube and Super-Lube grease for the rest.
    I bought 1 tub of the stuff and it’ll last me the rest of my life for all my firearms, rifles and pistols alike.

  8. This looks like a product that deserves a try.

    I could never understand how anyone can love guns, buy a beautiful piece of machinery like an AR, and not enjoy the Zen experience of disassembling it, cleaning it, inspecting every little part, and then putting a nice coat of lubricant on the moving parts and bore.

    1. @Mikial:

      Sometimes I’m a procrastinator on cleaning, but recently I DID have that Zen experience when I took apart my AR-10 bolt for the first time, replaced the extractor with an upgraded part, and did all the lubrication. I really did enjoy that accomplishment.

    2. Hey, ss1! How ya’ doin’?

      Glad to hear it. One of my favorite parts of going out and shooting is coming home, going into my man cave, and spending a couple of hours cleaning guns. When my sweet young wife and i go to the indoor range, we usually take at least five different handguns to shoot, so I get to have plenty of fun cleaning them after.

    3. @ Mikial,

      Wow! So poetic. The way you worded that made me want to drop what I’m doing and go break down one of my ARs for a generic cleaning. You are so right, with a true love of guns comes the joy found in cleaning it as well.

    4. Why, thank you, G-Man.

      You never knew us hired guns could be poetic? Why, even the Samurai were expected to write poetry. 😉

      But, joking aside, it really is one of the most relaxing things you can do . . . assuming you don’t mess up and launch a spring across the room somehow. And this product looks like the next generation of lubrication. We used to all carry a Tuf-Cloth in Iraq to wipe our weapons down to protect them from the dust. Now, silicone impregnated cloths are common. Time marches on.

    5. LOL!! I was trying to replace the main spring in my 1911 a last year. When I was compressing the spring into the housing, it launched. I spent over two weeks looking for that damn spring cause I had to order it online. Yes I live in CA and there are not shops that carry parts. I just found it on top of the kitchen window drapes around three weeks ago….

      Just a comment about the “assuming you don’t mess up and launch a spring across the room somehow”

    6. @ vector16,

      That had to be so incredibly aggravating. Not being able to find a missing part is borderline insanity for me. Dropping small screws that seem to instantly disappear is another. I’ll get so pissed I’ll test-drop another screw just to see how far it will bounce in order to set a search perimeter. Then my wife laughs at me when I engage here to join the search for 2 lost screws.

    7. More importantly, after you search sometimes for hours, then you ask the wife. She looks down and picks it up. She then says, “is this what you are looking for? You really should go get some glasses”.

      But yes is insane. I have done the same thing and looked for hours only to find it stuck in my damn sock or in the cuff of my pant leg.

    8. Mikial, you have truly underscored the joy of owning well-made firearms. It is truly a “Zen-like” experience when you strip ’em down to bare bones, put ’em back together – and they work like the pieces of beautiful machinery that they are.

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