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Thread: New Frontier/ Polymer lowers?

  1. #31
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    Quote Originally Posted by cj5_dude View Post
    So you agree that polymer is strong, and perhaps even as strong or stronger than aluminum but you're not willing to admit that it's possible to build an AR lower out of polymer that is as 100% reliable and strong as an aluminum one?

    These are obviously working and surviving. Doing an internet search I found only 2 images of broken Plum Crazy lowers, one was likely due to operator error and the other may be a legitimate breakage. This is a different company than Plum Crazy and maybe better.

    I see no reason to not take a chance on something like this. They are inexpensive and could one day be a game changer with AR's. Just because someone calls it polymer doesn't mean it is weak. I think there's a great chance that one day there are very strong AR lowers made of polymer that are more durable than aluminum, and maybe that day is already here.

    Endur, I don't think anything will sway you, but to the OP and others keep your mind open that science is amazing and polymers may take over the world someday.
    Man you still are not reading properly. Knowhere did I say they can't make an ar lower out of polymer that is reliable.. if it was designed from the ground up with polymer as the material and not just replaced with polymer. Key words there replaced with polymer and not designed with it in mind.

    Man I can understand if someone doesn't understand when words are exchanged but not when it is clearly in text right in front of you. RIGHT IN FRONT OF YOU. How can you read the words and think they read otherwise. It's like trying to reason with women (most).. selective hearing, in this case selective reading.

    To the poster who asked how do I know if they didn't design it with polymer in mind. I don't but from the pics I have seen it doesn't look so.
    Last edited by Endur; 02-24-12 at 19:27.

  2. #32
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    I hear what you're writing but it isn't true.

    I can say "You CAN'T put chunky peanut butter on a peanut butter and jelly sandwich" but that doesn't make it true does it?

    There's no disagreement that a polymer AR lower can be built, and that it can be sturdy. Your disagreement is that you can't use the same dimensions for an aluminum lower vs a polymer lower. But it is possible if you have a polymer that is equal to aluminum in it's properties. And who's to say that isn't possible and isn't the case with these new lowers without seeing them and testing them?
    Police work: If it were easy it would be called your mom.

  3. #33
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    Quote Originally Posted by cj5_dude View Post
    I hear what you're writing but it isn't true.

    I can say "You CAN'T put chunky peanut butter on a peanut butter and jelly sandwich" but that doesn't make it true does it?

    There's no disagreement that a polymer AR lower can be built, and that it can be sturdy. Your disagreement is that you can't use the same dimensions for an aluminum lower vs a polymer lower. But it is possible if you have a polymer that is equal to aluminum in it's properties. And who's to say that isn't possible and isn't the case with these new lowers without seeing them and testing them?
    Time will tell on these lowers and I'm betting it won't pass.. Your comment about chunky pb on pb&j just shows me you still are not getting the point.

    My last response as I get enough dumb arguing from my wife.

  4. #34
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    No thanks I don't waste money on crap parts.

  5. #35
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    Quote Originally Posted by ForTehNguyen View Post
    the Cavalry Arms lower with integrated stock is much better if you want to reduce weight
    I had one of those.. fell hard on it a couple times. (ice)
    good tough lowers. The standard AR15 lower with screw in stock extension just isn't suitable for making out of plastic. that area has a big moment arm on it and is pretty thin. Works fine when made of forged aluminum, not so much with plastic. The cav arms with the integral stock dispenses with this issue.

  6. #36
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    I actually came across this lower while on facebook. I was thinking about building a truck gun with it or maybe a gun for the GF . I asked them a few questions and im waiting to hear back now . Otherwise i dont see a problem using one for a loaner/range gun . The lower doesnt really go through much stress anyways .As i recall the PCF lowers had problems with wear around the buffer tube area (getting chewed up and what not) if these are made of a different polymer maybe they solved that problem ?

  7. #37
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    Quote Originally Posted by sinlessorrow View Post
    According to the company they use a special proprietary polymer blend that is much stronger than aluminum.

    If thats true i have no idea and honestly their videos of torture tests are very sketchy with all the cutting they did
    I didn't see where they designated what they mean by "stronger" - hardness? Modulus of elasticity?

    Also, from their site, their "lifetime warranty" contains the dreaded words "Lifetime warranty against any manufacturer defects when used as directed". I have to wonder what company policy determines what a "manufaacturers defect" is and what "used as directed" involves, other than just shooting.

    Given the fact that I can get a $50 stripped lower, and a decent LPK with a 4-pos stock for another $100, for MY money, I will stick with aluminum. YMMV.

  8. #38
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    LW15 Lower

    I was going to buy one to make a .22 out of for my grandson. They are sold out as of today. That said there are going to be hundreds of happy customers or hundreds of dissapointed ones. I am still going to get one on backorder. I hope it's not a mistake. lol =/

  9. #39
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    I ordered one a few weeks ago and it arrived today. From the first impression it looks great but I will not get to shoot it for a few weeks because I am waiting for the DD m-l upper to arrive. I am looking to achieve a 5.75 lb rifle with higher end performance and am confident in the new poly lowers capabilities, I plan to put this through the wringer. This will be a scout type rifle and will try several caliber uppers with it as well as stocks, later I will try to get my aar up. Savage

  10. #40
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    I pick mine up Friday, I still plan to buy a alum lower and parts kit down the road and replace the lw15 lower. Then turn this in to a gun for the wife.
    Last edited by Cucv; 03-24-12 at 18:06.

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