AR trigger grease

[bananaman]

I just bought a very lightly used LMT 2 stage trigger and am about to install it. All the previous threads seem to recommend AeroShell grease #6 or Mobil #28. I have two questions:

1. Obviously the pins should be greased. How about the contact points on the sear and hammer? Many other posts, including the famous "15 minute trigger job" floating around, suggest polishing these surfaces. Wouldn't grease inhibit this polishing? I am in no way going to stone or polish anything, and I can stand less than "baby butt" smoothness until it breaks in - not a bench rest guy. And I'm not going to send it to Springfield or anyone else. I just want to install it once, the best it can be, and go shoot it.

2. The 2 greases above seem a) pricey and b) come in a big tube. Can a good Moly lube/paste from an auto parts place give just as good results? If not, anyone know where I can find a small tube (like comes with the Geisselle)?

I try to be a no voodoo guy - bore snake, clean with Hoppe's elite and lube with Mobile 1 - and don't want to add anything to the KISS routine unless really needed. Thanks for any advice.

[Keesh]

http://www.midwayusa.com/viewproduct...tnumber=133862

This stuff has lasted for over 5000 rounds in my AR. It would have gone longer but I cleaned everything at that point and put on some fresh stuff.

That said, I've also used lithium grease from the auto parts store and I don't notice much of a difference.

[CoryCop25]

Geissele Automatics come with a tube of Mobil #28 that's gotta tell you something...

[markm]

Geissele Automatics come with a tube of Mobil #28 that's gotta tell you something...

And the instructions tell you to put it on the engagement surfaces.

[bananaman]

Geissele Automatics come with a tube of Mobil #28 that's gotta tell you something...

And the instructions tell you to put it on the engagement surfaces.

Yeah, I get both those parts. Strongly considered just getting an SSA and be done with it. IIRC, the Geissele pins are a closer fit than standard and likely the engagement surfaces are already polished. I was just thinking the LMT is a bet less "refined", uses the stock pins, and having read some possibly dubious advice about polishing it myself or using lapping compound to smooth things out (not on a Geiselle) that putting lube on them immediately would have the opposite effect.

Also not disinclined to spend $12 on a HUGE tub of Mobile #28 (My can of Loctite C5 I use on my Glocks will last several lifetimes) I just don't want to spend $ if something simpler would suffice for a part that doesn't need routine lube.

Thanks for indulging the noob o wise gurus of the forum.

[Sgt_Gold]

I'm going to let you in on a dirty little secret, when it comes to triggers grease is grease. When you start talking about high pressures and temps, or other high stress applications it can start to get complicated, but an AR trigger group is none of the above. I use wheel bearing grease for just about everything gun related because if it can hold under tens of thousands of miles and still be good, nothing that happens in a firearm is going to hurt it. If i want to go supper slippery I use a moly paste I got from Bushmaster. I bought two 35mm film canister sized containers of this stuff almost 15 years ago, and I haven't run out yet.

[bananaman]

Thank you. Maybe I was fishing for this validation.

I started as a "Mil Spec, CLP only" as a noob to the AR, then tried everything new and/or better. Finally settled on what worked, for the cheapest and easiest. In fact, when the Hoppes Elite runs out will just clean with Simple Green HD (purple stuff) available at Home Depot. Learned about that when I owned a (cough, cough) AK and it worked great.

Just never been a believer in using the latest, greatest, distilled virgin breast sweat essence peddled for $15 per oz, or to paraphrase Iraqgunz in a recent thread, "use Mobile 1, Vagisil or Duncan Hines vanilla frosting". Just lube it well, don't be to anal-retentive about cleaning it use the savings to buy more ammo and shoot the thing.

[OIPactual]

Thank you. Maybe I was fishing for this validation.

I started as a "Mil Spec, CLP only" as a noob to the AR, then tried everything new and/or better. Finally settled on what worked, for the cheapest and easiest. In fact, when the Hoppes Elite runs out will just clean with Simple Green HD (purple stuff) available at Home Depot. Learned about that when I owned a (cough, cough) AK and it worked great.

Just never been a believer in using the latest, greatest, distilled virgin breast sweat essence peddled for $15 per oz, or to paraphrase Iraqgunz in a recent thread, "use Mobile 1, Vagisil or Duncan Hines vanilla frosting". Just lube it well, don't be to anal-retentive about cleaning it use the savings to buy more ammo and shoot the thing.

just used that for my sig line

totally agree with you, grease is grease. i worked in a auto parts store for a few years and one thing i learned is that most lubes are tested to the same spec...(Napa 10w30 is from the same barrels as Valvoline, the companies are owned by the same people). that said, i do think that there is a difference when it comes to high heat/pressure areas and use either Mobil 1 or Amsoil.

[bananaman]

Just a follow up and a thanks for all the thoughtful responses.

Took the LMT 2-stage out to the range after lubing the pins with some moly auto grease and just a dab on the engagement surfaces. Works great, liked the 2-stage alot. Damn, now I'll have to save $ for a Giessele and compare.

The big surprise was that I gave the same treatment to my stock GI trigger on another gun. Grease on the pins and just a toothpick dab to the sear. It has the Wolff reduced power trigger spring and disconnector installed. Made a huge difference there. Trigger pull couldn't have been more than 5 pounds, no creep or grittty feel. Yet not too light to worry about using it under stress. Huge difference for $10 total - I recommend it highly.

I do have a tube of Aeroshell #6 on order, and will replace the moly when it comes in. But I'm definitely a believer in trigger pin and engagement surface grease now.

Happy 4th to everybody. We would still be drinking hot tea and paying taxes to the queen if it weren't for our brave forefathers bearing arms against tyranny. This board is a testament to that legacy.

[ALCOAR]

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