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Thread: Poly Lower

  1. #31
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    Quote Originally Posted by Cpnraisnuts View Post
    Oh shit! Lol. (Face palm).


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    No worries.
    You'll end up replacing the A2 anyway.
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

  2. #32
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    When it comes to getting new people to shoot and supplying them with knowledge gunshops seem to be substandard.

    It is ashame that we are shooting (pun intended) ourselves in the foot with these certified dremel gunsmiths.

  3. #33
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    Quote Originally Posted by TriviaMonster View Post
    On topic, I think one day poly lowers may take over. Let me change that, could take over. Who knows, but right now Al isn't exactly proving to be a big downside to the current TDP. Maybe we will see carbon fiber lowers too? Who knows. And, FYI, I am talking about .mil weapons not silly toys with insane price tags like the Christiansen Arms carbon fiber barreled guns.
    It's certainly possible if somebody were to take the time to correctly engineer the lower WITH the proper material. From what I've seen of most polymer lowers, the designers made a part virtually identical to a forged aluminum lower, except it's polymer, essentially assuming that it will behave the same way under repeated loading, which is a complete fallacy.

    Well designed carbon fiber has strength values close to that of steel and weight in line with plastic.

    Biggest issue with CF is that if you overload it, it's not just going to bend, it's going to break. Secondarily there are damage tolerance issues that would have to be solved. Nicks and dings that make an AL lower ugly, can severely compromise the structurual integrity of a CF part.

    ETA

    In the end manufacturing concerns may keep CF from ever being used in a gov't issue weapon. It's quite a bit easier and cheaper to consistently forge and machine an AL lower than it is to manufacture a CF component that's structurually consistent.
    Last edited by nova3930; 11-09-12 at 15:11.

  4. #34
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    I saw this same discussion when the poly framed pistols came out.

  5. #35
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    I've had an idea about the Poly lower and wish to change my mind

    It seems these may be OK? for a .22 plinker???

    That's what I thought anyways...

    *ETA*
    In the latest issue of "Tactical Weapons" there is an add by Bushmaster for a poly lower.
    Last edited by Mr.Anderson; 11-09-12 at 17:24. Reason: to add

  6. #36
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    Curious, on these polymer lowers. Are the pivot/takedown pin mount holes polymer as well or do some have metal inserts?

    -Jax


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  7. #37
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    Nope - no liner - poly on poly - another reason they don't last.

  8. #38
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    Copy and thanks

    -Jax


    "Despite what your mamma told you, violence does solve problems."
    -Ryan Job



    Quote Originally Posted by Army Chief View Post
    "Elite" designations come from the things that you DO in life, and not from the things that you buy along the way. AC

  9. #39
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    Just ordered one of the New Frontier Armory polymer stripped lowers to try on a dedicated .22 that I am putting together. I figure for $42, it's worth a try. It will be pretty much for plinking at the range, so if it breaks, I'm out $42 & cut my plinking day short. We'll see how it does in this role. I agree that at this point, I wouldn't want to be trusting it for use in a duty or defensive weapon. It will be interesting to see how the evolution for the polymer lowers progresses, or not. I am surprised that we haven't seen some sort of skelotonized aluminum lower with a polymer shell around it.

  10. #40
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    Quote Originally Posted by ericridebike View Post
    Just ordered one of the New Frontier Armory polymer stripped lowers to try on a dedicated .22 that I am putting together. I figure for $42, it's worth a try. It will be pretty much for plinking at the range, so if it breaks, I'm out $42 & cut my plinking day short. We'll see how it does in this role. I agree that at this point, I wouldn't want to be trusting it for use in a duty or defensive weapon. It will be interesting to see how the evolution for the polymer lowers progresses, or not. I am surprised that we haven't seen some sort of skelotonized aluminum lower with a polymer shell around it.
    I think you will like the lower for that role. I put a Taccom FUL upper and Taccom butt stock on mine. Weighs 3 pounds, 5 ounces. Red dot adds 5 ounces.


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