Cleaning Benelli Gas Tubes

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Tactidad

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So I'll go out on a limb and post that I spend hours upon hours cleaning the gas tubes and pistons on my Benelli M4. It takes a few days to clean, because there is nothing my 3 year old loves more than grabbing the smallest piece he can get his hands on and running away with it. I can only clean when he is sleeping. I was using pipe cleaners, wipe out, Q tips, filed down toothbrushes, anything I could fit inside the tube to clean it properly.

Until I made a discovery.

The gas tube is approximately .38 inch wide. A copper brush for a .38 pistol cleans out the hard stuff perfectly. Im getting a .38 bore snake as soon as I can.

Is this too good to be true? Have I missed something else for cleaning them? I hope this is a new thing and it has solved a problem for someone else!
 
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I'm not lucky enough to have an M4 but I have a 17 cal, 22 cal and a 410 (it's labeled 28 ga but I forced it into my 410 and now that's the size of the "brushes") that are used exclusively for gas tubes and ports .. And I'm talking for corrosive ammo in a few guns and never ran into any issues
 
Tactidad said:
Until I made a discovery.

I hope this is a new thing and it has solved a problem for someone else!
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Hey, as a new M4 owner your discovery will come in handy. Thanks for sharing that because I'm way too thick to come-up with things like that on my own, seriously.
 
Don't you guys love the Benelli's official "self cleaning M4 pistons" claims? Take your M4 to the range only once, open it up afterwards and these so called "self cleaning" pistons and tubes couldn't be any dirtier.
f:P:
 
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Yes, you are missing something. It's called BreakFree CLP, although other synthetic CLP style products will work as well.

Try this next time. Shoot your gun lots. Take it apart at the range and see how it is as dirty as usual. Then spray BF CLP into the ports, cylinders, rings, tubes, etc. that are presently baked with carbon. Then shoot your gun some more. Take it home, take it apart, and clean it as usual. Let us know how big a smile you have on your face.
 
Are you supposed to avoid getting any real amount of lubricants in the piston area?

I suppose slathering the gas tubes in bore cleaner and letting it sit for a while would work, but you'd have to keep that stuff away from the O-rings.
 
I compared the copper brush I was using to the .40 brush that came with the glock. It is smaller, so that tells me its probably a .38. When I measure the tube, its a lot closer to .44 than 38. I assumed the brush was for a .44 because the snug fit but I am obviously wrong.


Remeasured with better device. Definitely .38.
P90Puma said:
errr .44?

I have always used a .38 brush....
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Just got back from Princess Auto. They had Power Fist 4 piece dental hooks. I bought some and just cleaned a gob of crap out of the gas ports. They got some nice sized hooks with twists and curves to em to get all up in there.

I might have a problem.
 
I have about 10,000 rounds through my M4 this year and other than changing the hand guards all I have done is lube the bolt with clp and wipe everthing dowm.

So for me it is self cleaning. Only malfunction was in the winter when I had too much CLP on the bolt, First round did not cycle fully.
 
Grouse Man said:
Yes, you are missing something. It's called BreakFree CLP, although other synthetic CLP style products will work as well.

Try this next time. Shoot your gun lots. Take it apart at the range and see how it is as dirty as usual. Then spray BF CLP into the ports, cylinders, rings, tubes, etc. that are presently baked with carbon. Then shoot your gun some more. Take it home, take it apart, and clean it as usual. Let us know how big a smile you have on your face.
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NEVER lube inside a gas system "your only going to speed up the carbon build up"

My god people Jar heads dont have these problems with their M4 Benellis :p
 
Dsiwy said:
NEVER lube inside a gas system "your only going to speed up the carbon build up"

My god people Jar heads dont have these problems with their M4 Benellis :p
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That's true with older lubricants, not with newer synthetics. You'll have to see it to believe it. I shoot my Rem 1100 and Moss 930 'wet' in the piston/cylinder areas, and on the mag. tube. Same with my SKS and all semi rimfires. Cleanup is one wipe with a rag - done. NO carbon buildup.
 
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