Grease vs. Oil

AR/M4 AR Technical Discussion
1

Dear All,

I am new to the site and love that i am learning so much already. I am a police officer in texas and want to care for my weapons as best as possible and enjoy learning about others results.

So here is the question… I have read and heard several debats on using Grease vs. Oil on your M4/AR parts ??? For those of you who used these weapons on a daily basis… Please fill me in on your imput… I have a RRA Elite Car A4

Thanks

HFD

2

The only place I’d use grease is on the Bolt Carrier Cam Pin. Though I don’t.

3

All I use is BreakFree.

I’ve never had any problems after thousands of rounds.

4

Light grease on the carrier rails and moderate grease on the cam pin for me. Mobil 1 on the bolt forward of the rings but not on the bolt face.

5

wouldn’t grease cause a build up of carbon deposits causing the life and wear ant tear to be greatly depriciated??

I think i am liking the motor oil discussion previously even though i have never tried it on my guns.

6

We stock BF CLP and Tetra for lube at my dept. For the most part, I stick with a CLP of some type for lubrication. I’ve used synthetic motor oil as well and it works okay. None of the tech manuals call for grease, but yes, I have used that as well. When it comes down to it, have some type of lube properly applied and you’re GTG.

7

Not at all. I’ve been running it for years. Carbon only builds up behind the rings.

8

Been using grease in addition to oil for 25 years on duty AR15’s, M16’s, and M4’s without problems…