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Thread: Thumbhole stocks as a method of reinforcing magnesium or polymer lowers...

  1. #11
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    NO.

    Sarah Brady butthole stocks were conceived in hell, and there they deserve to die. Mating one bad idea, to ANOTHER bad idea (poly lower), does NOT make a good idea.
    - Either you're part of the problem or you're part of the solution or you're just part of the landscape - Sam (Robert DeNiro) in, "Ronin" -

  2. #12
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    Quote Originally Posted by TomMcC View Post
    Got it, sounds like the plastic is just too rubbery.
    The CAV-15, now made and sold by GWACS (http://www.gwacsarmory.com/lower-receivers-ar-15/), works just fine. The design is modified for the properties of polymer rather than aluminum. Wall thicknesses are greater in many areas, and the grip and stock are integral, avoiding what would otherwise be weak points.

    There are very few occasions where you can make a huge material change in a properly engineered whatever and have an acceptable result. With the AR-15, you can use steel instead of Al at the same dimensions and everything will work fine, you just have triple the weight. Switching to anything lighter/weaker/more flexible without extensive engineering is asking for trouble.
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  3. #13
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    Weapon weight is in the barrel, optics, and ammo. You're not going to make a car handle better by filling the tires with helium instead of shop air.
    Sent from the future using Squid Telepathy

    Quote Originally Posted by MistWolf View Post
    If we could control all the variables, we'd just put all the bad luck on our enemies and stay home.

  4. #14
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    Further numbers to support this: Per their website, a Colt 6920 weighs 6.95 pounds (111.2 oz). A mil-spec stripped lower weighs 8.5 oz. This means that the forged lower makes up 7.6% of the rifle's total weight.

    Sources:
    https://www.colt.com/detail-page/col...-4-pos-stk-blk
    https://docs.google.com/spreadsheets...#gid=558510150
    Last edited by Dionysusigma; 06-23-18 at 19:10.
    Sent from the future using Squid Telepathy

    Quote Originally Posted by MistWolf View Post
    If we could control all the variables, we'd just put all the bad luck on our enemies and stay home.

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