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Thread: New Frontier/ Polymer lowers?

  1. #61
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    Ok, ok. To be honest I was intrigued both by the material and the cost. And having a new infant kind of dictates what's available in the old gun fund these days. After having a couple of custom guns built I swore I would never buy a factory rifle again. There's something to be said about shooting a 1972 mfg action custom Remington 700 .308 heavy barrel in F-Class and whipping the guy next to you who's shooting a Tub 2000.

    But I took a shot on this one and we'll see what happens. I've really enjoyed this forum so far and the members both acknowledging my opinion and giving me plenty too. Very glad I joined.

  2. #62
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    I actually found a G&A review of the Plum Crazy from 2010 in their Book of the AR15. It does appear to be from the same mold as the trigger group, selector, serial number placement etc. seems to be identical. I'm not sure what happened to PCF but I can't find much past 2010 and most sites seem to have their product out of stock and my browser won't let me into their website.

    The G&A review talks about how good the trigger is compared to most stock (I call BS on that one) and how it holds up on any lower up to the 450/458. Again, casual shooter sure. But I wouldn't put it on my service rifle and expect the same results in full season of highpower matches. The polymer trigger group is supposed to "break in" but mine at least had plenty of creep in it to warrant an immediate change. I have a lengthy email into New Frontier regarding some questions about the wear properties of their lowers as well as some other topics. I can post whatever reply I get back.

  3. #63
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    Quote Originally Posted by LowSpeed_HighDrag View Post
    For the life of me, I can not figure out why I would ever switch to an ALL polymer lower. What if I need to mortar the rifle to clear a malf?

    I suppose I could see something like this taking off if they used standard metal internals, sort of like a Glock frame, but an all plastic FCG doesnt sit well with me at all. Besides, how much weight are we really shaving off here, and where do we cross the line between weight loss and structural integrity. Rifles are heavy, the more you carry it the easier it gets. If you feel your 8lb AR is too heavy, dont put it on a diet, just get used to having it in your hands.

    I realize that 99% of these lowers are going to be used for recreational plinkers, but that isnt what this site is geared towards.
    I'm replacing all small parts back to metal. Mag catch...wear part. Pivot pins...wear part. Selector/trigger group...wear parts. How many mag changes are you going to get in with metal mags before the edge on the mag catch is shaved off from contact wear? A lot can be said about the strength of polymers but you're not going to have the same wear properties as the metal components.

  4. #64
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    Quote Originally Posted by merder inc View Post
    I actually found a G&A review of the Plum Crazy from 2010 in their Book of the AR15. It does appear to be from the same mold as the trigger group, selector, serial number placement etc. seems to be identical. I'm not sure what happened to PCF but I can't find much past 2010 and most sites seem to have their product out of stock and my browser won't let me into their website.

    The G&A review talks about how good the trigger is compared to most stock (I call BS on that one) and how it holds up on any lower up to the 450/458. Again, casual shooter sure. But I wouldn't put it on my service rifle and expect the same results in full season of highpower matches. The polymer trigger group is supposed to "break in" but mine at least had plenty of creep in it to warrant an immediate change. I have a lengthy email into New Frontier regarding some questions about the wear properties of their lowers as well as some other topics. I can post whatever reply I get back.
    Well that reply from NFA didn't take long. Said no warranty issues with replacing components with mil-spec but some minor fitting may be required. I should not expect any wear problems and the warranty will still cover any receiver issues. We'll see.

  5. #65
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    Got to handle one of these for the first time today, a friend ordered one.
    I am waiting for him to test it out to see what he thinks about it.

  6. #66
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    I love mine I do have some issues with my P mag dropping out though, I did change out the Mag well catch to a metal one. that helped some but i dont like the fact that my metal mags drop free with no issue and the pmags dont drop out.
    Last edited by Cucv; 07-03-12 at 01:36.

  7. #67
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    I used one for my first build and am happy so far.

    Check out the torture tests on their site. http://www.lw15.com/

    It truly helped me make my decision while also factoring price.
    Last edited by orbie; 07-03-12 at 02:07.

  8. #68
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    Quote Originally Posted by Cucv View Post
    I love mine I do have some issues with my P mag dropping out though, I did change out the Mag well catch to a metal one. that helped some but i dont like the fact that my metal mags drop free with no issue and the pmags dont drop out.
    I'm on the fence with pmags anyway. I have 6; one rifle will drop 2 but not the other 4. Another AR of mine won't drop any. I've had them change whether they do or not in different weather conditions too. Considering the criticism I've gotten on the polymer lower, I'm tempted to make the argument that the original mags were metal and weren't meant to ever be plastic. I like the Brownells mags or the older Colts if they aren't trashed. The brownells rebuild kits are nice too.

  9. #69
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    Quote Originally Posted by victor3ranger View Post
    I guess my next question is this, if someone had one of these and already had a standard small parts kit and internals would they fit in one of these lowers??
    I have changed the mag release and button, all the detents, trigger group, and safety all with minor fitting. NO issues whatsoever. Fitting was done with a flat and round needle file.

  10. #70
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    Quote Originally Posted by Endur View Post
    Obviously you are not getting the point. No one is arguing the strength of polymer. The point is you can't just make something that was designed with one specific material in mind and make it with another. You have to redesign it with the material you want to make out of from the get go. Again I reference pmags, glocks and now the scar. All designed before hand with polymer in mind. Not something remade with another material.
    Totally agree. Look at Stoner, designed the AR with aerospace materials and went up against the military hierarchy at Springfield. Doesn't mean that he wouldn't have used polymer today, just what he was used to working with at Fairchild. Everybody is so in love with Colt but their own M4 testing showed a barrel failure after less than 600 rounds...and they testing because of extended firefights in Afghanistan were causing catastrophic failures with M4s. For every pmag/scar type evolution to the AR line there are hundreds that were disasters. God willing we'll be talking about the AR-15 for another 40 years! Or lasers...

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