I’ve just started building my own AR, and am brand new to the world of AR’s. I have a good amount of Mil-Comm TW25B, and plan to use that in my AR as it has worked for me fairly well in my M&P. I read up on all the lubing guides and have a good grasp on where the stuff needs to go. What I can’t figure out, though, is how to get the gas ports on the bolt carrier. From what I’ve gathered, one of the steps involved in keeping an AR running after approximately 1000 rounds is to hit the two ports in the carrier with some lube and let it get inside. How do I do that with grease? Or is the Mil-comm stuff good enough to not have to worry about that and just keep blasting away?
“Packing” the gas rings much as one would a roller bearing, before inserting the bolt into the carrier, would be my suggestion. Get as much in there as you can and let normal use work the lube where it needs to go.
(I know at first glance it looks like a NSFW/ gory pic, but that’s just what bearing grease looks like)
Well if you are going to use grease, wouldn’t you be greasing your bolt before you put it in the carrier? Those ports are for spray lube as needed to keep bolt lubed in carrier. You are not going to be able to “spray” grease in there. Use the grease if you want initially, then for in use lubing, find something that you can spray in there
Get a mil-comm oiler bottle of their 2500 oil product, and squirt a drop or two through the holes. Retract bolt just enough until you see the rings line up underneath the holes and dispense the oil in there.
+1
You’ll need liquid to pump through the holes. Preferably a non-solvent (i.e. a pure lubricant…NOT clp).
I use Slip 2k EWL grease packed in my mcfarland gas ring before I re-assemble it. After that it’s all lube through the holes, regardless of round count.