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joshfireart 05-23-2010 10:53 PM

ok im asking for help
im having ftf which has grown to failer to eject i belive its in the gas tube ive field strip and have cleaned the gun several times have sprayed break clean down gas tube several times how do ya pull the gas tube any good help will be welcomed.. my m4 has became a single shot with 30 round mag

JonM 05-23-2010 11:17 PM

there is a small roll pin on the gas block near the muzzle that holds the tube on.

joshfireart 05-24-2010 12:43 AM

well spayed the hell out of it wow its working again

bgeddes 05-24-2010 02:52 AM

I think carb cleaner works better in the gas system than brake cleaner.

moshpit 06-06-2010 01:24 AM

1 or 2 drops of Break Free (in the very worst case scenarios, usually 3 of 4 works), a couple of pipe cleaners and 60 seconds, all it ever needs.

canebrake 06-06-2010 01:40 AM

When in doubt, Kroil!

c3shooter 06-06-2010 03:29 AM

Go by one of the craft stores, like Ben Franklin. They carry 18 inch pipecleaners. Once you finish with the gas tube, check the rings on your bolt, and security of the bolt carrier gas tube extension.

General-Logic 06-06-2010 04:17 AM

Clean the bolt. Clean every hole in it. Make it sparkle.

rab 06-20-2010 06:39 PM

Hope it's cured.
What is it that points to the gas tube. Espeacially on a ftf?
You've probobbly fixed it, but if not, take a look at the extractor. My first AR failure was a collapsed extractor spring.

good luck.....

CONKLE73 06-21-2010 07:18 PM

Check the gas key and make sure it is clear…
I have seen a blown primer from a bad round get stuck in the gas key and baffle the hell out of everyone… its rare, but it caused FTE really bad…
As for your FTF problem… a dirty gas tube wouldn’t cause a failure to fire, neither would a blocked gas key.
Any specifics that you can give would help… pics help a ton as well.

Factory rife or did you build it?
The devil is in the details… have you checked to make sure that your hammer spring isn’t installed upside-down? That causes FTF pretty often due to lighter than normal primer strikes.

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