what type of lube should I use and does it operate better with lotsa lube or less lube? appreciate any tips regarding maintenance.
Opinions on lube type and amount of lube can cause heated debates. My best advice is to pick a single method that works for you and stick with it.
My opinion, so take it for what it's worth...
I've used everything from liquid oils of every type of weight to different types of greases, from light coatings to heavy coatings. Cleaning is cleaning. Regardless of the type or amount of lube.
- Breakfree CLP
- Mobil 1 Synthetic Motor Oil (5w30 because that's what I have in the garage)
Breakfree CLP is a known quantity. It does the job of both cleaning and lubing. It comes in convenient aerosol cans. Stuff just works. When compared to boutique firearms lubes that are purchased by the ounce, a quart of Mobil 1 Synthetic is dirt cheap and will last a long time.
The direct impingement gas system poops where it eats, and there is no getting around it. Run lightly lubed, and the carbon will cook onto the BCG and foul the upper. Run wet, and the lube can cook. Excess lube slings around the upper and into the lower catching fouling. Either way, you're cleaning.
From 1st hand experience, the only way to overcome a portion of the "poops where it eats" issue is to install a Nickel Boron Bolt Carrier Group. I've tried three different NiBx coated BCG's. The only one that lived up to it's marketing claims is the Fail Zero Exo.
I ran my AR dry, no lube. Carbon fouling wiped off with a terry cloth rag. No lube to sling around meant I could just wipe out the upper and blow out the lower.