The free floating handguard on my AR is a pain in the ass to

Eezox
Synthetic motor oil
Frog lube
Rust prevent
Lubriplate fmo 350 aw (my choice)

Lots of choices.

paint

>>33851023
That's not going to happen you retard.

is it stainless? as long as you arent a somali pirate out on the ocean, it probbaly wont rust. an ss barrel might develop a little discoloration, just take the rail off and clean it.

cosmoline

>>33852893
>>33852916
You all say this but I found my cz 452 had a light rust spot under the barrel and all it did was sit in the open in my room

If you want to be safe I would lightly coat exterior metal in some sort of gun oil as mentioned here:
>>33851045

>>33851023
>The free floating handguard on my AR is a pain in the ass to remove so I don't see myself ever taking it off unless absolutely necessary.

It should probably be done once in a while, honestly. Maybe once a year?

>>33852964
Gun oil is mostly solvent and flashes to nothing after a short while.

I suggest Fluid Film.

>>33852921
This. It's definitely the best as long as you like the smell.

>>33853049
I've seen some tests done that have found decent rust resistance of something as simple as hoppes 9 lube oil.

As far as what I suggested the lubriplate 350 aw has rust preventing additives.

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>that filename

>>33855734
Nvm, too busy taking morning dump to read entire OP

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>>33853049
Don't tell me you're serious