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  1. #1

    Default AR15 Lower in Titanium

    Why have I never seen one of these?

  2. #2

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    Quote Originally Posted by Reptile View Post
    Why have I never seen one of these?
    Because titanium is much harder to work with than aluminum.

  3. #3

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    My best guesses:

    -Cost (stupidly expensive)
    -Answer to a question nobody asked.
    -Doesn't do anything a forged or billet lower won't do for less money.

    -Mike

  4. #4
    NES Member Viper22's Avatar
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    Way too expensive. The shop I'm employed at does work with titanium. I had to price out some fasteners. We're talking $15 to $20 for ONE #6-32 x 1/2" SHCS (socket head cap screw). Just imagine how much an AR-15 lower would run.

  5. #5
    NES Member SemiAutoSam's Avatar
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    They exist but only in a forging from what I remember.

    Or maybe it was from a site that sold 80% receivers.

    From what I remember it was Olympic arms that had them available.


    Yep they sold 80% receivers alright.
    https://www.vbd.com/noc/shop/product...&ProductID=286
    Last edited by SemiAutoSam; 06-17-2009 at 11:38 PM.
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  6. #6
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    The lower doesn't really take any wear anyway. If anything the bolt and carrier and the surfaces it rides on in the upper are the high-wear surfaces.

  7. #7
    NES Member Stratocaster1422's Avatar
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    I'm surprised that 80% one is as cheap as it is. Maybe we can get one out of Magnesium :)


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  8. #8
    NES Member SemiAutoSam's Avatar
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    From what I see here the magnesium is lighter than Titanium but Titanium is much stronger.

    I bet a company that builds lowers could make one from a block of either material but tooling wear would be worse with Titanium and that = more $ to the end user.

    Metal or alloy kg/cu.m
    magnesium 1738
    titanium 4500

    http://www.simetric.co.uk/si_metals.htm

    Quote Originally Posted by Stratocaster1422 View Post
    I'm surprised that 80% one is as cheap as it is. Maybe we can get one out of Magnesium :)
    Discovering Your Strawman, Yes I'm serious about this. ¿?
    http://www.youtube.com/watch?v=eYB0N0Of4Cw
    http://rexcurry.net/index2.html
    http://freedom-school.com/patriation.pdf
    About our Origin on earth.
    http://mars-earth.com/sitchin.htm
    "I think Congressmen should wear uniforms like NASCAR drivers so we could identify their corporate sponsors."

    A good paragraph should be like a ½ skirt - long enough to cover the subject but short enough to keep your attention.

  9. #9
    NES Member vellnueve's Avatar
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    The lower receiver does not bear any real load during use.
    Disclaimer: I am not a lawyer and thus any interpretation or statements about the law that I might make should be taken with a grain of salt and mixed with your own legal research as well as advice from actual legal counsel. I cannot be held responsible if you find yourself somebody's "friend" in federal, state, or local prison should you act on my opinions on the law. My interpretations of the law will generally be on the conservative side.

  10. #10
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    Everybody gets all hot and bothered over titanium. The trendiness is tiring.

    Fact - Titanium weighs 60% more than Aluminum for a given volume.

    That means that if you use an existing design meant for Aluminum and make it out of titanium it will weigh 60% more than the aluminum part.

    Think of it this way:

    Titanium is a light version of Steel
    Magnesium is a light version of Aluminum

    Titanium is sometimes substituted for steel in high performance applications. Valves and valve springs come to mind.

    Magnesium is occasionally subbed for Aluminum. They have similar fatigue properties if memory serves me right.

    So. . . if you wanted to make a lightweight AR, it would be interesting. You cold build the receivers out of magnesium. You could certainly make the bolt out of titanium. I'm not familiar of anyone using titanium for barrels. But it might be possible.

    Front sight base, buffer tube could be magnesium as could some fire control parts, with the highly stressed trigger, sear, and disconnect made out of Titanium.

    Finally, the buffer and spring could be made from Titanium. With the right amount of gas and the proper weight spring, the gun would run fine with the lighter reciprocating mass. (Combined mass of the BCG and the buffer)

    Don
    Last edited by dcmdon; 06-18-2009 at 02:39 AM.

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