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Thread: Pros and cons of polymer parts

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    Patriot Jimbo Slice's Avatar
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    Pros and cons of polymer parts

    With the prices dropping lately, I was thinking that I may try to tackle an AR build. I see some places have polymer lowers at far cheaper prices and was wondering what the pros and cons might be to using one of these in my build.

    I'm sure I could go to AR15.com or whatever and find mountains of opinions on the subject, but I thought I would run it by a select few first. Thanks in advance.

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    Founding Member LEAD POISON's Avatar
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    Plastic is for squirt guns made by matel.
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  3. #3
    Patriot Jimbo Slice's Avatar
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    Quote Originally Posted by LEAD POISON View Post
    Plastic is for squirt guns made by matel.
    Yeah but... ... isn't that kind of what we're talking about in the first place?


  4. #4
    Moderator Orlando's Avatar
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    I honestly dont see a reason for a plastic lower, heck what can you possibly save a few ounces in weight??? My concern is longtime durability of the hinge point.
    Plastic lowers may be cheaper but I would rather pay the $$$$ and get a real lower. JMO
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    Patriot Jimbo Slice's Avatar
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    Quote Originally Posted by Orlando View Post
    I honestly dont see a reason for a plastic lower, heck what can you possibly save a few ounces in weight??? My concern is longtime durability of the hinge point.
    Plastic lowers may be cheaper but I would rather pay the $$$$ and get a real lower. JMO
    Here we go. You see, I didn't even think of the hinge point between upper and lower. I just have to wonder why anybody would buy a polymer lower if they did indeed suffer from durability issues.

    Does anybody know of any horror stories?

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    Moderator Orlando's Avatar
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    I am sure they are reinforced with a metal sleeve but I still just dont see a reason for them, but I dont own a Glock either
    I suppose under normal use they are fine but how much $$ are you actually saving?
    "I am the master of my unspoken words, and a slave to those that should have remained unspoken. ...



    "Official 2010 Mini-G & 2011 Summer Postal Shoot Biggest Looser"

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    Founding Member LEAD POISON's Avatar
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    The way things are going,In a few years your going to have pay more for a quality all metal firearm.
    I have metal guns that are 85 years old. Some with plastic grips,most with minor cracks,chips.Plastic gets old too.Will these Plastic guns last half that long.heat & cold ware and tear.
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    Administrator timshufflin's Avatar
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    I know a few great reasons for a polymer lower,
    you can print them when the feds infringe a bit more and tell them to go stuff it
    they are cheap, you can keep buying them as you fancy
    they are a little lighter

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    I would use one in a heartbeat for a rimfire build.

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    Plastic lower for a rimfire or range toy, sure.

    Plastic lower for a rifle intended for serious social purposes? Not for me, thanks... not until those pesky breakage issues are cleared up (or my son-in-law gets his 3D printer up so I can make lots of 'em and tell Sacramento to stuff it).

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