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Thread: Cutting lower receiver

  1. #11
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    Quote Originally Posted by 762x39 View Post
    An entire stripped lower weighs 8-1/2 ounces. How much weight can you possibly save by cutting off a corner of the magwell? My guess is that you would be measuring it in grains and not ounces. Lots of places to save that tiny amount of weight without hacking up your receiver.
    This^. Seems to me it would be like trying to lose weight by trimming your man parts. Better ways to do it than that.

  2. #12
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    Id be warry of modifying anything that has been speced, designed, and fielded for over 60 years. If the magwell breaks your sol


    To each his own though. try it on a cheap lower and test it, let us know how it holds up to serious testing

    Sent from my SM-G900P using Tapatalk

  3. #13
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    I understand being conscious of weight when you're building something to not end up with a brick, which I have had and it's not the most fun, but hacking stuff to save minuscule amounts of weight is beyond me.

  4. #14
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    Ya, I was also looking at it from the cosmetic approach though

    Sent from my SAMSUNG-SM-N910A using Tapatalk

  5. #15
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    Quote Originally Posted by daniel87 View Post
    Id be warry of modifying anything that has been speced, designed, and fielded for over 60 years.
    Well that's just as foolhardy as drilling holes for no reason. Innovation comes from tinkering and wondering "what if". Just because something has been fielded for decades, doesn't mean it's unable to be modified or rethought.

    The key is to use your head and make smart cuts in smart places.

  6. #16
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    Quote Originally Posted by azoutdoorsman View Post
    How so? The lower takes almost no stress whatsoever and there are a few companies that offer "skeletonized" lowers already.

    Even the shitty plastic lowers never cracked at the magwell.
    The recoil load goes from the front lugs to the receiver extension, it has to pass through the magazine well, at least the top half inch of it.

    If you look closely at the rear lug hole on the upper, it is machined elongated abut .020", so it doesn't take any of the recoil load.



    Plastic lowers crack where the bending stress is the highest, right at the angle for the horn for the extension....

  7. #17
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    Quote Originally Posted by 1911-A1 View Post
    Well that's just as foolhardy as drilling holes for no reason. Innovation comes from tinkering and wondering "what if". Just because something has been fielded for decades, doesn't mean it's unable to be modified or rethought.

    The key is to use your head and make smart cuts in smart places.
    I agree i was referring to a person who probably doesnt understand about stresses

    This is an aluminum part not steel.
    Aluminum scratches and dings as it is shaving 1/100 of an ounce may compromise the aluminum receiver
    Sent from my SM-G900P using Tapatalk
    Last edited by daniel87; 11-06-15 at 22:40.

  8. #18
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    I've funneled mag wells, blasted, then Cerakoted, but haven't cut holes in the mag well. I don't see many problems arising from doing so if someone wanted to personalize.

    What I would recommend for someone wanting to do this is start with an 80% in the white, do all the mods you want that don't affect upper interface or structural integrity of the RE tube boss, or the support for the FCG pins, and have a blast with your sculpture.

    If you're a gifted machinist or slept in a Holiday Inn Express with your handheld rotary tool management degree, it should turn out nicely. Anodize and Cerakote afterwords to match your upper and be done with it.

  9. #19
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    A water jet would probably be the best
    machine to do this.

    Come up with a design. I am sure you can
    find a company willing to do it.

    Let us know how it turns out.

    Cheers, Stainless.

  10. #20
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    https://unique-ars.com/product-categ...guards/page/2/

    The above company makes custom cut
    hand guards for the AR-15 with a water
    jet.

    Maybe they would be willing to take on
    a lower project.

    A hex pattern would look really cool.

    Cheers, Stainless.

    Hex-600x600_zoom-300x300.jpg

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