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Thread: Enhanced/Heavy Duty Gas Tubes

  1. #1
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    Enhanced/Heavy Duty Gas Tubes

    Strictly for informational purposes only-
    Ive been wondering about these. After watching the Colt video where they shoot those several hundred rounds on full auto, the thing that failed was the gas tube. Then, I see a video with an "enanced tube".
    Who makes these? On a SHTF type rifle, would this be a worthwhile addition or not at all needed?
    What about melonite coated tubes? Any advantages or disadvantages?
    Again, only wondering about these. No way I could ever fire the amount of ammo it took to melt that tube.
    Also-a search here rendered nothing on this.

  2. #2
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    Where can the video you are referring to be found?

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    Go to youtube and type in something like M4torture test, or something like that.
    They dumped, IIRC, 900+ rounds full auto as fast as they could insert mags, in one vid the barrel warps. Very cool.

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    On a SHTF rifle or any other rifle probably not worth the time or money.

    A.) You don't have a full auto rifle
    B.) You probably wouldn't be carrying that much ammo in a SHTF situation
    C.) I don't think your concern is grounded in reality

    The only "enhanced" tube I'd even bother trying would be the Fatboy from PRI is I had an overgassed carbine either due to gas port size or use of a suppressor.

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    Interesting I'd like to know myself

  6. #6
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    AGAIN...please understand me.
    Im ONLY WONDERING about this. NOT concerned or worried in the least.
    Just wanting technical knowledge, more info, is all.

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    Quote Originally Posted by Straight Shooter View Post
    AGAIN...please understand me.
    Im ONLY WONDERING about this. NOT concerned or worried in the least.
    Just wanting technical knowledge, more info, is all.
    Fact! It's great to be informed

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    I do unique testing. The small time it takes to change a 30 rd. mag saves the gas tube. There are mil plots I don't have linked to directly that show the up and down nature.

    A gas tube melt point is a function of how many rounds fired how fast. It also depends on ammo and porting.

    For example here is me with a total melt down of a mil spec gas tube in 400 rds of Wolf..
    http://www.youtube.com/watch?v=sPhbO208I2U

    We made some gas tubes that don't fail, ever. Inconel and oversized. Then we reduced the oversized went to standard gas tube size with inconel. The inconel isn't cheap, stainless gas tubes are cheap as hell. In the end you just really need a support for the gas tube about 1 inch behind the port from the underneath and you'd go much further. They get hot and droop but are still holding pressure. Its a little bit of a fuse for the system but I would have thought it had been upgraded a long time ago just because of the possibility.

    I melt tubes all the time, I use the lightest profile barrels and I have never had a rupture so I believe there is a huge amount of difference between barrel rupture and the point of the tube failing but it is largely dependent on the modes of fire. I think things should be tested in the worst case scenario.

    This isn't the time for the piston hoora because I have popped op-rods, blown regulators out the front. A good piston gun only helps you when you are at the temperatures you should be way more aware of cook-off....
    http://www.youtube.com/watch?feature...lDlH6NY#t=270s

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    Melonite, Nickel Boron, hard chrome etc... any of these coatings can only make a good product better. I'd have no problem using a gas tube or any other quality made part that was coated in any of these. The AR industry, like many others continues to evolve. As completely new innovations seem to be lacking, coating rifle components is the newest addition. It won't make up for poor maintenance, but might make the time to failure last a little longer. Last I saw, a Spikes Melonite coated gas tube cost damn near the same as a standard Stainless one. If I was doing a new build, I'd use it in a heartbeat.

  10. #10
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    Good answers gents..thanks for the info and the links.
    Keep em coming!

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