got a question... whats the best way to clean the gas tube/system on the m&p15.. on my gun, the tube isnt straight and was wondering how to clean it..

just curious

After cleaning the bore...

I put a a rag on my bench. Put the muzzle down on the rag. I spray Break Free Powder Blast down the gas tube & blow out whatever gunk is in the gas tube. I then pull a few dry patches down the bore, then follow up with a lube moistened patch.

DON'T!
They are pretty much self cleaning, they'll get to a certain point and then blow the crud out themselves.
If you start pouring solvents or using pipe cleaners you're more likely to cause a blockage than leaving it alone.
The one exception to that is if you use a .22 conversion kit, those things will lead up the gas block hole eventually.
If it concerns you that much, better to just buy a new gas tube and have it on standby on the off chance the old one actually fails.

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Hold my beer and watch this!

Don't waste your time. There is zero benefit to cleaning the gas tube in a normal AR firing 223/5.56 ammunition.

Thank you gentlemen. I learned something new.

Me too JaPes, I cleaned mine in the service for 22 years and never knew I didn't have too. All I did was just use a pipe cleaner.

Wow there is a lot of different information, a couple of different people say to put the upper muzzle down on a rag and use either break free or brake cleaner down the gas tube and blow it out and some people say don't bother that its self cleaning. I dont have pipe cleaners and have only shot .223/5.56 ammo in it. but when I pulled my gas block to change it there was quite a bit of carbon build up in the gas block itself. But I was having no problems.

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Grover Oathkeeper